document_title: Roman numerals

question_text: when do you use the roman numerals in chemistry

question_tokens: when do you use the roman numerals in chemistry

text: Roman numerals

text: Roman numeric system

text: Basic decimal pattern

text: The original pattern for Roman numerals used the symbols I, V. and X (1, 5, and 10) as simple tally marks. Each marker for 1 (I) added a unit value up to 5 (V), and was then added to (V) to make the numbers from 6 to 9:

text: The numerals for 4 (IIII) and 9 (VIIII) proved problematic (among other things, they are easily confused with III and VIII), and are generally replaced with IV (one less than 5) and IX (one less than 10). This feature of Roman numerals is called subtractive notation.

text: The numbers from 1 to 10 (including subtractive notation for 4 and 9) are expressed in Roman numerals as follows:

text: The system being basically decimal, tens and hundreds follow the same pattern:

text: Thus 10 to 100 (counting in tens, with X taking the place of I, L taking the place of V and C taking the place of X):

text: Note that 40 (XL) and 90 (XC) follow the same subtractive pattern as 4 and 9.

text: Similarly, 100 to 1000 (counting in hundreds):

text: Many numbers include hundreds, units and tens. The Roman numeral system being basically decimal, each "place" is added separately, in descending sequence from left to right, as with "arabic" numbers. For example, the number 39 is XXXIX, (three tens and a ten less one), 246 is CCXLVI (two hundreds, a fifty less ten, a five and a one. As each place has its own notation there is no need for place keeping zeros, so "missing places" can be simply omitted: thus 207, for instance, is written CCVII (two hundreds, a five and two ones) and 1066 becomes MLXVI (a thousand, a fifty and a ten, a five and a one)[3][4]

text: Roman numerals for large numbers are nowadays seen mainly in the form of year numbers (other uses are detailed later in this article), as in these examples:

text:
1776 as MDCCLXXVI, the date written on the book held by the Statue of Liberty.[5]
1954 as MCMLIV, as in the trailer for the movie The Last Time I Saw Paris[6]
1990 as MCMXC, used as the title of musical project Enigma's debut album MCMXC a.D., named after the year of its release.
2014 as MMXIV, the year of the games of the XXII (22nd) Olympic Winter Games (in Sochi)

text: Alternative forms

text: The "standard" forms described above reflect typical modern usage rather than a universally accepted convention. Usage in ancient Rome varied greatly and remained inconsistent in medieval and modern times.[7]

text:
Inscriptions dating from the Roman period not infrequently use "additive" forms such as IIII and VIIII for "4" and "9" instead of IV and IX. There are even instances of both forms appearing within the same document.
While in standard usage subtractive notation is limited to use of "adjacent" numerals, so that 99 (for example) is written XCIX, forms such as IC are not unknown.
XIIX or IIXX are sometimes used for "18" instead of XVIII. The Latin word for "eighteen" is often rendered as the equivalent of "twenty less two", which may be the source of this usage.
Sometimes V and L are not used, with instances such as IIIIII and XXXXXX rather than VI or LX.[8][9]

text:
Clock faces that use Roman numerals normally show IIII for four o’clock but IX for nine o’clock, a practice that goes back to very early clocks such as the Wells Cathedral clock of the late 14th century.[10][11][12] However, this is far from universal: for example, the clock on the Palace of Westminster in London (aka "Big Ben") uses a "normal" IV.[11]
At the beginning of the 20th century, different representations of 900 (conventionally CM) appeared in several inscribed dates. For instance, 1910 is shown on Admiralty Arch, London, as MDCCCCX rather than MCMX, while on the north entrance to the Saint Louis Art Museum, 1903 is inscribed as MDCDIII rather than MCMIII.[13]

text: History

text: Pre-Roman times and ancient Rome

text: Although Roman numerals came to be written with letters of the Roman alphabet, they were originally independent symbols. The Etruscans, for example, used 𐌠, 𐌡, 𐌢, ⋔, 𐌚, and ⊕ for I, V, X, L, C, and M, of which only I and X happened to be letters in their alphabet.

text: Hypotheses about the origin of Roman numerals

text: Tally marks

text: One hypothesis is that the Etrusco-Roman numerals actually derive from notches on tally sticks, which continued to be used by Italian and Dalmatian shepherds into the 19th century.[14]

text: Thus, ⟨I⟩ descends not from the letter ⟨I⟩ but from a notch scored across the stick. Every fifth notch was double cut i.e. ⋀, ⋁, ⋋, ⋌, etc.), and every tenth was cross cut (X), IIIIΛIIIIXIIIIΛIIIIXII...), much like European tally marks today. This produced a positional system: Eight on a counting stick was eight tallies, IIIIΛIII, or the eighth of a longer series of tallies; either way, it could be abbreviated ΛIII (or VIII), as the existence of a Λ implies four prior notches. By extension, eighteen was the eighth tally after the first ten, which could be abbreviated X, and so was XΛIII. Likewise, number four on the stick was the I-notch that could be felt just before the cut of the Λ (V), so it could be written as either IIII or IΛ (IV). Thus the system was neither additive nor subtractive in its conception, but ordinal. When the tallies were transferred to writing, the marks were easily identified with the existing Roman letters I, V and X.

text: The tenth V or X along the stick received an extra stroke. Thus 50 was written variously as N, И, K, Ψ, ⋔, etc., but perhaps most often as a chicken-track shape like a superimposed V and I: ↆ. This had flattened to ⊥ (an inverted T) by the time of Augustus, and soon thereafter became identified with the graphically similar letter L. Likewise, 100 was variously Ж, ⋉, ⋈, H, or as any of the symbols for 50 above plus an extra stroke. The form Ж (that is, a superimposed X and I like: 𐊌) came to predominate. It was written variously as >I< or ƆIC, was then abbreviated to Ɔ or C, with C variant finally winning out because, as a letter, it stood for centum, Latin for "hundred".

text: The hundredth V or X was marked with a box or circle. Thus 500 was like a Ɔ superimposed on a ⋌ or ⊢, becoming D or Ð by the time of Augustus, under the graphic influence of the letter ⟨D⟩. It was later identified as the letter D; an alternative symbol for "thousand" was (I) (or CIƆ or CꟾƆ), and half of a thousand or "five hundred" is the right half of the symbol, I) (or IƆ or ꟾƆ), and this may have been converted into ⟨D⟩.[15] This at least was the etymology given to it later on.

text: Meanwhile, 1000 was a circled or boxed X: Ⓧ, ⊗, ⊕, and by Augustinian times was partially identified with the Greek letter Φ phi. Over time, the symbol changed to Ψ and ↀ. The latter symbol further evolved into ∞, then ⋈, and eventually changed to M under the influence of the Latin word mille "thousand".

text: Hand signals

text: Alfred Hooper has an alternative hypothesis for the origin of the Roman numeral system, for small numbers.[16] Hooper contends that the digits are related to hand gestures for counting. For example, the numbers I, II, III, IIII correspond to the number of fingers held up for another to see. V, then represents that hand upright with fingers together and thumb apart. Numbers 6–10, are represented with two hands as follows (left hand, right hand) 6=(V,I), 7=(V,II), 8=(V,III), 9=(V,IIII), 10=(V,V) and X results from either crossing of the thumbs, or holding both hands up in a cross.

text: Another possibility is that each I represents a finger and V represents the thumb of one hand. This way the numbers between 1–10 can be counted on one hand using the order: I=P, II=PR, III=PRM, IV=IT, V=T, VI=TP, VII=TPR, VIII=TPRM, IX=IN, X=N (P=Pinky, R=Ring, M=Middle, I=Index, T=Thumb N=No Fingers/Other Hand). This pattern can also be continued using the other hand with the fingers representing X and the thumb L.

text: Intermediate symbols deriving from few original symbols

text: A third hypothesis about the origins states that the basic ciphers were I, X, C and Φ (or ⊕) and that the intermediary ones were derived from taking half of those (half an X is V, half a C is L and half a Φ/⊕ is D).[17] The Φ was later replaced with M, the initial of Mille (the Latin word for "thousand").

text: Middle Ages and Renaissance

text: Minuscule (lower-case) letters were developed in the Middle Ages, well after the demise of the Western Roman Empire, and since that time lower-case versions of Roman numbers have also been commonly used: i, ii, iii, iv, and so on.

text: Since the Middle Ages, a "j" has sometimes been substituted for the final "i" of a "lower-case" Roman numeral, such as "iij" for 3 or "vij" for 7. This "j" can be considered a swash variant of "i" (see example [1]). The use of a final "j" is still used in medical prescriptions to prevent tampering with or misinterpretation of a number after it is written.[18][19]

text: Numerals in documents and inscriptions from the Middle Ages sometimes include additional symbols, which today are called "medieval Roman numerals". Some simply substitute another letter for the standard one (such as "A" for "V", or "Q" for "D"), while others serve as abbreviations for compound numerals ("O" for "XI", or "F" for "XL"). Although they are still listed today in some dictionaries, they are long out of use.[20]

text:
Number
Medieval
abbreviation
Notes and etymology

5
A
Resembles an upside-down V. Also said to equal 500.

6
Ϛ
Either from a ligature of VI, or the Greek numeral 6: stigma (Ϛ).[21]

7
S, Z
Presumed abbreviation of septem, Latin for 7.

11
O
Presumed abbreviation of onze, French for 11.

40
F
Presumed abbreviation of English forty.

70
S
Also could stand for 7, with the same derivation.

80
R

90
N
Presumed abbreviation of nonaginta, Latin for 90. (N.B. N is also used for "nothing" (nullus)).

150
Y
Possibly derived from the lowercase y's shape.

151
K
Unusual, origin unknown; also said to stand for 250.[22]

160
T
Possibly derived from Greek tetra, as 4 × 40 = 160.

200
H
Could also stand for 2 (see also 𐆙, the symbol for the dupondius). From a barring of two I's.

250
E

300
B

400
P, G

500
Q
Redundant with D, abbreviates quingenti, Latin for 500.

2000
Z

text: Chronograms, messages with dates encoded into them, were popular during the Renaissance era. The chronogram would be a phrase containing the letters I, V, X, L, C, D, and M. By putting these letters together, the reader would obtain a number, usually indicating a particular year.

text: Modern use

text: By the 11th century, Hindu–Arabic numerals had been introduced into Europe from al-Andalus, by way of Arab traders and arithmetic treatises. Roman numerals, however, proved very persistent, remaining in common use in the West well into the 14th and 15th centuries, even in accounting and other business records (where the actual calculations would have been made using an abacus). Replacement by their more convenient "Arabic" equivalents was quite gradual, and Roman numerals are still used today in certain contexts. A few examples of their current use are:

text:
Names of monarchs and popes, e.g. Elizabeth II of the United Kingdom, Pope Benedict XVI. These are referred to as regnal numbers; e.g. II is pronounced "the second". This tradition began in Europe sporadically in the Middle Ages, gaining widespread use in England only during the reign of Henry VIII. Previously, the monarch was not known by numeral but by an epithet such as Edward the Confessor. Some monarchs (e.g. Charles IV of Spain and Louis XIV of France) seem to have preferred the use of IIII instead of IV on their coinage (see illustration).
Generational suffixes, particularly in the US, for people sharing the same name across generations, for example William Howard Taft IV.
In the French Republican Calendar, initiated during the French Revolution, years were numbered by Roman numerals – from the year I (1792) when this calendar was introduced to the year XIV (1805) when it was abandoned.
The year of production of films, television shows and other works of art within the work itself. It has been suggested – by BBC News, perhaps facetiously – that this was originally done "in an attempt to disguise the age of films or television programmes."[23] Outside reference to the work will use regular Hindu–Arabic numerals.
Hour marks on timepieces. In this context, 4 is usually written IIII.
The year of construction on building faces and cornerstones.
Page numbering of prefaces and introductions of books, and sometimes of annexes, too.
Book volume and chapter numbers, as well as the several acts within a play (e.g. Act iii, Scene 2).
Sequels of some movies, video games, and other works (as in Rocky II).
Outlines that use numbers to show hierarchical relationships.
Occurrences of a recurring grand event, for instance:

The Summer and Winter Olympic Games (e.g. the XXI Olympic Winter Games; the Games of the XXX Olympiad)
The Super Bowl, the annual championship game of the National Football League (e.g. Super Bowl XXXVII; Super Bowl 50 is a one-time exception[24])
WrestleMania, the annual professional wrestling event for the WWE (e.g. WrestleMania XXX). This usage has also been inconsistent.

text: Specific disciplines

text: In astronomy, the natural satellites or "moons" of the planets are traditionally designated by capital Roman numerals appended to the planet’s name. For example, Titan's designation is Saturn VI.

text: In chemistry, Roman numerals are often used to denote the groups of the periodic table. They are also used in the IUPAC nomenclature of inorganic chemistry, for the oxidation number of cations which can take on several different positive charges. They are also used for naming phases of polymorphic crystals, such as ice.

text: In computing, Roman numerals may be used in identifiers which are limited to alphabetic characters by syntactic constraints of the programming language. In LaTeX, for instance, \labelitemiii refers to the label of an item in the third level iii of a nested list environment.

text: In military unit designation, Roman numerals are often used to distinguish between units at different levels. This reduces possible confusion, especially when viewing operational or strategic level maps. In particular, army corps are often numbered using Roman numerals (for example the American XVIII Airborne Corps or the WW2-era German III Panzerkorps) with Hindu-Arabic numerals being used for divisions and armies.

text: In music, Roman numerals are used in several contexts:

text:
Movements are often numbered using Roman numerals.
In music theory, the diatonic functions are identified using Roman numerals. (See: Roman numeral analysis)
Individual strings of stringed instruments, such as the violin, are often denoted by Roman numerals, with higher numbers denoting lower strings.

text: In pharmacy, Roman numerals are used in some contexts, including S to denote "one half" and N to mean "nothing".[25] (See the sections below on "zero" and "fractions".)

text: In photography, Roman numerals (with zero) are used to denote varying levels of brightness when using the Zone System.

text: In seismology, Roman numerals are used to designate degrees of the Mercalli intensity scale of earthquakes.

text: In tarot, Roman numerals (with zero) are used to denote the cards of the Major Arcana.

text: In theology and biblical scholarship, the Septuagint is often referred to as LXX, as this translation of the Old Testament into Greek is named for the legendary number of its translators (septuaginta being Latin for "seventy").

text: In entomology, the broods of the thirteen and seventeen year periodical cicadas are identified by Roman numerals.

text: In advanced mathematics (including trigonometry, statistics, and calculus), when a graph includes negative numbers, its quadrants are named using I, II, III, and IV. These quadrant names signify positive numbers on both axes, negative numbers on the X axis, negative numbers on both axes, and negative numbers on the Y axis, respectively. The use of Roman numerals to designate quadrants avoids confusion, since Hindu-Arabic numerals are used for the actual data represented in the graph.

text: Modern use in continental Europe

text: Some uses that are rare or never seen in English speaking countries are relatively common in continental Europe. For instance:

text: Capital or small capital Roman numerals are widely used in Romance languages to denote centuries, e.g. the French xviiie siècle[26] and the Spanish siglo XVIII mean "18th century". Slavic languages in and adjacent to Russia similarly favour Roman numerals (XVIII век). On the other hand, in Slavic languages in Central Europe, like most Germanic languages, one writes "18." (with a period) before the local word for "century".

text: Mixed Roman and Hindu-Arabic numerals are sometimes used in numeric representations of dates (especially in formal letters and official documents, but also on tombstones). The month is written in Roman numerals, while the day is in Hindu-Arabic numerals: "14.VI.1789" and "VI.14.1789" both refer unambiguously to 14 June 1789.

text: Roman numerals are sometimes used to represent the days of the week in hours-of-operation signs displayed in windows or on doors of businesses,[27] and also sometimes in railway and bus timetables. Monday, taken as the first day of the week, is represented by I. Sunday is represented by VII. The hours of operation signs are tables composed of two columns where the left column is the day of the week in Roman numerals and the right column is a range of hours of operation from starting time to closing time. In the example case (left), the business opens from 10 AM to 7 PM on weekdays, 10 AM to 5 PM on Saturdays and is closed on Sundays. Note that the listing uses 24-hour time.

text: Roman numerals may also be used for floor numbering.[28][29] For instance, apartments in central Amsterdam are indicated as 138-III, with both a Hindu-Arabic numeral (number of the block or house) and a Roman numeral (floor number). The apartment on the ground floor is indicated as '138-huis'.

text: In Italy, where roads outside built-up areas have kilometre signs, major roads and motorways also mark 100-metre subdivisionals, using Roman numerals from I to IX for the smaller intervals. The sign "IX | 17" thus marks kilometre 17.9.

text: A notable exception to the use of Roman numerals in Europe is in Greece, where Greek numerals (based on the Greek alphabet) are generally used in contexts where Roman numerals would be used elsewhere.

text: Special values

text: Zero

text: The number zero does not have its own Roman numeral, but the word nulla (the Latin word meaning "none") was used by medieval scholars in lieu of 0. Dionysius Exiguus was known to use nulla alongside Roman numerals in 525.[30][31] About 725, Bede or one of his colleagues used the letter N, the initial of nulla or of nihil (the Latin word for "nothing"), in a table of epacts, all written in Roman numerals.[32]

text: Fractions

text: Though the Romans used a decimal system for whole numbers, reflecting how they counted in Latin, they used a duodecimal system for fractions, because the divisibility of twelve (12 = 22 × 3) makes it easier to handle the common fractions of 1/3 and 1/4 than does a system based on ten (10 = 2 × 5). On coins, many of which had values that were duodecimal fractions of the unit as, they used a tally-like notational system based on twelfths and halves. A dot (•) indicated an uncia "twelfth", the source of the English words inch and ounce; dots were repeated for fractions up to five twelfths. Six twelfths (one half) was abbreviated as the letter S for semis "half". Uncia dots were added to S for fractions from seven to eleven twelfths, just as tallies were added to V for whole numbers from six to nine.[33]

text: Each fraction from 1/12 to 12/12 had a name in Roman times; these corresponded to the names of the related coins:

text:
Fraction
Roman numeral
Name (nominative and genitive)
Meaning

1/12
•
Uncia, unciae
"Ounce"

2/12 = 1/6
•• or :
Sextans, sextantis
"Sixth"

3/12 = 1/4
••• or ∴
Quadrans, quadrantis
"Quarter"

4/12 = 1/3
•••• or ::
Triens, trientis
"Third"

5/12
••••• or :·:
Quincunx, quincuncis
"Five-ounce" (quinque unciae → quincunx)

6/12 = 1/2
S
Semis, semissis
"Half"

7/12
S•
Septunx, septuncis
"Seven-ounce" (septem unciae → septunx)

8/12 = 2/3
S•• or S:
Bes, bessis
"Twice" (as in "twice a third")

9/12 = 3/4
S••• or S:·
Dodrans, dodrantis
or nonuncium, nonuncii
"Less a quarter" (de-quadrans → dodrans)
or "ninth ounce" (nona uncia → nonuncium)

10/12 = 5/6
S•••• or S::
Dextans
or decunx, decuncis
"Less a sixth" (de-sextans → dextans)
or "ten ounces" (decem unciae → decunx)

11/12
S••••• or S:·:
Deunx
"Less an ounce" (de-uncia → deunx)

12/12 = 1
I
As, assis
"Unit"

text: The arrangement of the dots was variable and not necessarily linear. Five dots arranged like (⁙) (as on the face of a die) are known as a quincunx, from the name of the Roman fraction/coin. The Latin words sextans and quadrans are the source of the English words sextant and quadrant.

text: Other Roman fractional notations included the following:

text:
1/8 sescuncia, sescunciae (from sesqui- + uncia, i.e. 1½ uncias), represented by a sequence of the symbols for the semuncia and the uncia.
1/24 semuncia, semunciae (from semi- + uncia, i.e. ½ uncia), represented by several variant glyphs deriving from the shape of the Greek letter sigma (Σ), one variant resembling the pound sign (£) without the horizontal line(s) and another resembling the Cyrillic letter Є.
1/36 binae sextulae, binarum sextularum ("two sextulas") or duella, duellae, represented by a sequence of two reversed Ss (ƧƧ).
1/48 sicilicus, sicilici, represented by a reversed C (Ɔ).
1/72 sextula, sextulae (1/6 of an uncia), represented by a reversed S (Ƨ).
1/144 = 12−2 dimidia sextula, dimidiae sextulae ("half a sextula"), represented by a reversed S crossed by a horizontal line (𐆔).
1/288 scripulum, scripuli (a scruple), represented by the symbol ℈.
1/1728 = 12−3 siliqua, siliquae, represented by a symbol resembling closing guillemets (𐆕).

text: Large numbers

text: A number of systems were developed for the expression of larger numbers that cannot be conveniently expressed using the normal seven letter symbols of conventional Roman numerals.

text: Apostrophus

text: One of these was the apostrophus,[34] in which 500 (usually written as "D") was written as |Ɔ, while 1,000 was written as C|Ɔ instead of "M".[15] This is a system of encasing numbers to denote thousands (the Cs and Ɔs functioned in this case as the Roman equivalent of parentheses), and has its origins in Etruscan numeral usage. The D and M used to represent 500 and 1,000 in conventional Roman numerals were probably derived from |Ɔ and C|Ɔ, respectively.

text: In this system, an extra |Ɔ denoted 500, |ƆƆ 5,000 and |ƆƆƆ 50,000. For example:

text:
Base number

C|Ɔ = 1,000
CC|ƆƆ = 10,000
CCC|ƆƆƆ = 100,000

with |Ɔ
|Ɔ = 500
C|Ɔ|Ɔ = 1,500
CC|ƆƆ|Ɔ = 10,500
CCC|ƆƆƆ|Ɔ = 100,500

with |ƆƆ
|ƆƆ = 5,000

CC|ƆƆ|ƆƆ = 15,000
CCC|ƆƆƆ|ƆƆ = 105,000

with |ƆƆƆ
|ƆƆƆ = 50,000

CCC|ƆƆƆ|ƆƆƆ = 150,000

text: Sometimes C|Ɔ was reduced to ↀ for 1,000. John Wallis is often credited for introducing the symbol for infinity (modern ∞), and one conjecture is that he based it on this usage, since 1,000 was hyperbolically used to represent very large numbers. Similarly, |ƆƆ for 5,000 was reduced to ↁ; CC|ƆƆ for 10,000 to ↂ; |ƆƆƆ for 50,000 to ↇ; and CCC|ƆƆƆ for 100,000 to ↈ.[14]

text: Vinculum

text: Another system is the vinculum, where a conventional Roman numeral is multiplied by 1,000 by adding an overline.[14] Although mathematical historian David Eugene Smith disputes that this was part of ancient Roman usage,[35] the notation was certainly in use in the Middle Ages, and is at least a convenient and "conventional" way to express numbers greater than 3,999 in Roman numerals.

text: For instance:

text:
IV for 4,000
XXV for 25,000

text: Adding vertical lines (or brackets) before and after the numeral seems to have been used (at least by late medieval times) to multiply a Roman numeral by 10: thus |M| for 10,000 rather than X (perhaps under the influence of Arabic/Hindu numerals, which were by this time coming into use). In combination with the overline the bracketed forms might be used to raise the multiplier to (say) ten (or one hundred) thousand, thus:

text:
|VIII| for 80,000 (or 800,000)
|XX| for 200,000 (or 2,000,000)

text: This needs to be distinguished from the custom of adding both underline and overline to a Roman numeral, simply to make it clear that it is a number, e.g. MCMLXVII.


document_title: Ford F-Series

question_text: when was the first ford f 150 made

question_tokens: when was the first ford f 150 made

root

text: Ford F-Series

text: First generation (1948–1952)[edit]

text: The first-generation F-Series pickup (known as the Ford Bonus-Built) was introduced in 1948 as a replacement for the previous car-based pickup line introduced in 1942. The F-Series was sold in eight different weight ratings, with pickup, panel truck, cab-over engine (COE), conventional truck, and school bus chassis body styles.

tag: p

text: Second generation (1953–1956)[edit]

text: For the 1953 model year, an all-new version of the F-Series made its debut. Increased dimensions, improved engines, and an updated chassis were features of the second generation.

text: Additionally, a change to the F-Series naming scheme would remain in place to the present day. The half-ton F-1 became the F-100 (partially influenced by the North American F-100 Super Sabre); the F-2 and F-3 were combined into the F-250 while the F-4 became the F-350. Conventional F-Series trucks were F-500 to F-900; COE chassis were C-Series trucks.

text: Third generation (1957–1960)[edit]

text: Introduced in 1957, the third generation F-series was a significant modernization and redesign. Front fenders became integrated into the body, and the new Styleside bed continued the smooth lines to the rear of the pickup.

text: The cab-over F-Series was discontinued, having been replaced by the tilt-cab C-Series.

text: In 1959, Ford began in-house production of four-wheel-drive pickups.

text: Fourth generation (1961–1966)[edit]

text: Ford introduced a dramatically new style of pickup in 1961 with the fourth generation F-Series. Longer and lower than its predecessors, these trucks had increased dimensions and new engine and gearbox choices. Additionally, the 1961–1963 models were constructed as a unibody design with the cab and bed integrated. This proved unpopular and Ford reverted to the traditional separate cab/bed design in 1964.

text: In 1965, the F-Series was given a significant mid-cycle redesign. A completely new platform, including the "Twin I-Beam" front suspension, was introduced that would be used until 1996 on the F-150 and until 2016 on the F-250/350 4x2. Additionally that year, the Ranger name made its first appearance on a Ford pickup; previously a base model of the Edsel, it was now used to denote a high-level styling package for F-Series pickups.[5]

text: Fifth generation (1967–1972)[edit]

text: Introduced in 1967, the fifth generation F-series pickup was built on the same platform as the 1965 revision of the fourth generation. Dimensions and greenhouse glass were increased, engine options expanded, and plusher trim levels became available during the fifth generation's production run.

text: Suspension components from all 1969 F-Series models are completely interchangeable.

text: A variant of the fifth generation F-series was produced until 1992 in Brazil for the South American market.

text: Sixth generation (1973–1979)[edit]

text: The sixth generation F-series was introduced in 1973. This version of the F-series continued to be built on the 1965 fourth generation's revised platform, but with significant modernizations and refinements. Front disc brakes, increased cabin dimensions, gas tank relocated outside the cab and under the bed, significantly improved heating and air conditioning, full double wall bed construction, increased use of galvanized steel, SuperCab was introduced in the sixth generation pickup.

text: The FE engine series was discontinued in 1976 after a nearly 20-year run, replaced by the more modern 351 series (Modified) and 400 series engines.

text: In 1975, the F-150 was introduced in between the F-100 and the F-250 in order to avoid certain emission control restrictions. For 1978, square headlights replaced the previous models' round ones on higher trim package models, such as Lariat and Ranger, and in 1979 became standard equipment. Also for 1978, the Ford Bronco was redesigned into a variant of the F-series pickup. 1979 was the last year that the 460 big block engine was available in a half ton truck.

text: Seventh generation (1980–1986)[edit]

text: The 1980 F-Series was redesigned with an all-new chassis and larger body; this was the first ground-up redesign since 1965. The exterior styling of the truck was redone to improve aerodynamics and fuel economy. Medium-duty F-Series (F600-F900) were also redesigned; although they shared the cabin of the smaller pickup trucks, the largest version of F-Series now wore a bonnet with separate front wings (like the L-Series). Medium duty Ford F-Series would carry the 1980–1986 interior design until 2000 (though pickups were restyled again in 1987 and 1992), with very subtle changes such as window glass and electronics.

text: In a move towards fuel efficiency, Ford dropped the M-Series engines (the 5.8 Liter 351M and 6.6 Liter 400 cu in V8s) in 1981, replacing them with the 4.2 Liter 255 C.I. and 5.8 Liter 351 C.I. Windsor V8 engines from the Panther platform. The 255 V8 was simply a 5.0L, 302 V8 with a smaller bore, built specifically for better fuel economy, but was dropped for the 1982 model year due to being underpowered and having limited demand. For 1982 and 1983, the 3.8L, 232 C.I. Essex V6 was the base engine but was quickly dropped for the 1984 model year. In 1983, Ford added Diesel power to the F-Series through a partnership with International Harvester (later Navistar). The 6.9L, 420 C.I. IDI V8 produced similar power output as the gasoline 351 Windsor V8, with the fuel economy of the 4.9L, 300 I6. From this point on (1983-present), the heavier duty f-series trucks (F-350 and above) were usually equipped with the Diesel engines as standard horsepower. 1985 was the first year of electronic fuel injection on the 5.0L V8, all other engines following suit in 1988. There was a new "high output" version of the 5.8L Windsor beginning in 1984.

text: A noticeable change was made to the F-Series in 1982 as the Ford "Blue Oval" was added to the center of the grill, also the Ranger and Custom trims were no longer available. The Ranger name had been shifted onto the all-new compact pickup developed as a replacement for the Courier. The new trim levels were a no-badge base model (essentially the new Custom), XL, a very rare XLS, and XLT Lariat.

text: 1983 marked the final year of the F-100, making the F-150 the lightest pickup available on the market. F-100s and F-150s were virtually identical with the exception of smaller brakes and a 5x4.5 bolt pattern on the F-100 axles, as opposed to 5x5.5 on the F-150. F-100s over a certain GVWR and/or without power brakes did use the F-150 axles. Also, the 1980–1983 F-100 was never offered with four-wheel-drive.

text: 1986 marked the final year that the F-150 was available with a 3-speed manual gearbox that shifted via a steering column lever (3-on-the-tree). Incidentally, this was the second-last vehicle in the United States that offered this set up. 1986 was also the last year the Explorer package was available.

text: This is the first generation of trucks to incorporate amenities such as power mirrors, power windows, and power door locks.

text: Eighth generation (1987–1991)[edit]

text: The 1987 F-Series carried over the same body style from the seventh generation, yet sported a new rounded front clip that improved aerodynamics, as well as the softening of body lines around the rear of the bed and fender arches around the wheel wells. The interior was also completely redesigned in 1987. The transmissions available on SuperCab models were a four-or five-speed manual; regular cab models were also available with automatic transmission. The Custom trim made a comeback for the eighth generation. In 1988, the 4.9 Liter inline-six, 5.8 Liter V8, and 7.5 Liter V8 engines gained electronic fuel injection. International Navistar also increased the displacement of their 6.9 Liter V8 in the same year, resulting in the new 7.3 Liter unit. This was also the first year of a five-speed manual overdrive transmission, which included the Mazda M5OD in the F-150s and the heavy-duty ZF5 in the F-250s and F-350s. Four-speed manuals were dropped as standard equipment after 1987, but were available as a customer-ordered option until 1989. In 1989, the C6 three-speed automatic was replaced as the base automatic transmission with the E4OD, a four-speed electronically controlled automatic overdrive unit, though the C6 was still available as an option, mostly in F-250s and F-350s, until 1997. Heavy-Duty models included F-250s and F-350s (along with F-Super Dutys) that were classified as incomplete vehicles only that were produced with no bed, but appeared as tow trucks, box trucks (notably U-Haul), flatbed trucks, dump trucks and other models. Although the F-250s, F-250 HDs (heavy duty), and F-350s were built as a Chassis cab models only from 1987 to 1997, owners can convert the models to pickup trucks. However General Pacheco, Argentina and São Bernardo do Campo, Brazil assemblies were the only places F-250, F-250 HD, and F-350 were built and sold as pickup trucks models. Despite being produced only in General Pacheco, Argentina and São Bernardo do Campo, Brazil assemblies (located in South America) F-250s, F-250 HDs, and F-350s were shipped from South America to the United States as imports from 1987 to 1997.

text: Ninth generation (1992–1997)[edit]

text: For the 1992 model year, the body-shell of the 1980 F-Series was given another major upgrade. To further improve its aerodynamics, the forward bodywork was given a slightly lower hoodline, rounding the front fenders and grille; in addition, the changes matched the F-Series with the design of the newly introduced Explorer and redesigned E-Series and Ranger. Along with the exterior updates, the interior received a complete redesign.

text: Dormant since 1987, the FlareSide bed made its return as an option for 1992. To increase its appeal for younger buyers, the bed bodywork was redesigned, borrowing the sides of the F-350 dual-rear wheel bed (fitted to the narrower F-150 single-wheel chassis). To commemorate the 75th anniversary of the first Ford factory-produced truck (the 1917 Ford Model TT), Ford offered a 75th anniversary package on its 1992 F-series, consisting of a stripe package, an argent colored step bumper, and special 75th anniversary logos. In 1993, the 240 hp SVT Lightning was introduced as a specially-tuned performance truck; over 11,000 were built from 1993 to 1995.

text: In a trim shift, the XLT Lariat was dropped and combined with the XLT; the XL took over for the Custom trim after 1993 (marking the last usage of the Custom nameplate by Ford). In 1995, the Eddie Bauer trim made its return.

text: In 1995, the medium-duty Ford F-Series (F-600 through F-800 and all Ford B-Series) were given their first update since 1980. All versions (except severe-service) received a hood redesign which enlarged the grille and moved the turn signal indicators to the outside of the front headlights.

text: During the second half of 1997, the F-250 HD (heavy duty) was in the same series as the F-350. The body style stayed the same until the end of 1997. The only change of the F-250 HD and F-350 was that they no longer has classic style tailgates, with the stainless steel cap on them which read FORD. Instead the tailgate had the F-250 Heavy Duty/F-350 nameplate labeled on its left side, while Ford's blue oval was labeled on The right side (similarly styled like the 1997 Ford F-150 around this same time). The F-250 HD also had some minor changes in trim location, and options available. The 1997 F-250 HD with the 7.3 Powerstroke Diesel is also the rarest and most desirable of ninth generation Fords.

text: Following the introduction of the tenth-generation F-150, the F-250 and F-350 continued into production into the 1998 model year, becoming part of the Ford F-Series Super Duty line as they were replaced in 1999.

text: Tenth generation (1997–2003)[edit]

text: For 1997, Ford Motor Company made a major change to its F-Series family of trucks as the F-Series pickup line was essentially split in two. During the 1970s, 1980s, and 1990s, buyers of pickup trucks had increasingly purchased the vehicles for the purposes of personal use over work use. To further increase its growing market share, Ford sought to develop vehicles for both types of buyers. In its ultimate decision, the company decided to make the F-150 as a contemporary vehicle for personal use, while the F-250 and F-350 would be designed more conservatively for work-based customers.

text: Introduced in early 1996 as a 1997 model, the F-150 was a completely new vehicle in comparison from its predecessor. Similar to the original Ford Taurus of 1986, the 1997 F-150 was developed with a radically streamlined body. Dispensing with the traditional Twin I-Beam for a fully independent front suspension, the all-new chassis shared only the transmissions with the previous generation. In a major change, the long-running 4.9L inline-6 was replaced by a V6 engine as standard. The 4.6L Modular V8 shared with the Panther cars was optional (with a 5.4L version added in mid-1997); originally developed for use in the F-Series, the Modular/Triton V8 was the first overhead-cam engine ever fitted to a full-size pickup truck.

text: To improve rear-seat access for SuperCab models, a rear-hinged (curb-side) door was added to all versions. Following its popularity, the SuperCab gained a fourth door for 1999. In 2001, the F-150 became the first pickup truck in its size segment to become available with four full-size doors. Sharing the length of a standard-bed SuperCab, the F-150 SuperCrew was produced with a slightly shortened bed.

text: During the second half of the 1997 model year, Ford introduced a heavier GVWR version (8800 GVW), bearing the F-250 name. It was distinguished by seven-lug nut wheels. At the same time, the F-250 HD (heavy duty) was in the same series as the F-350 (same body style as the 1992 to 1997 model years; it was still built in South America only). Following the introduction of the Super Duty for 1999, it was quietly dropped.

text: In 1999, the SVT Lightning made its return, with output expanded to 360 hp; over 28,000 were produced from 1999 to 2003. For 2002, Lincoln-Mercury gained its first full-size pickup truck since 1968 with the introduction of the Lincoln Blackwood, the first Lincoln pickup. Sharing the front bodywork of the Lincoln Navigator SUV, the Blackwood was designed with a model-exclusive bed and was sold only in black. Due to very poor sales, the Blackwood was discontinued after 2002.

text: In 1998, the F-250 and F-350 pickups were introduced as the 1999 Ford F-Series Super Duty model line. While remaining part of the F-Series, the Super Duty trucks use a different platform architecture, powertrain, and design language, primarily as they are intended for heavy-duty work use. Designed in a joint venture with Navistar International, the medium-duty F-650/F-750 Super Duty were introduced in 2000.

text: Eleventh generation (2004–2008)[edit]

text: For the 2004 model year, the F-150 was redesigned on an all-new platform. Externally, the eleventh-generation model was different from its predecessor, with sharper-edged styling; a major change was the adoption of the stepped driver's window from the Super Duty trucks. Regardless of cab type, all F-150s were given four doors, with the rear doors on the regular cab providing access to behind-the-seat storage. Ford also introduced the Triton engines in the variants of the F-150. Due to declining sales, the Flareside beds were dropped; this marked the first time in 56 years of F-Series production that Flareside beds were not available.

text: From 2005 to 2008, Lincoln-Mercury dealers sold this version of the F-150 as the Lincoln Mark LT, replacing the Blackwood.

text: In late 2006, the Super Duty trucks were also given an all-new platform. While using the same bed and cabin as before, these are distinguished from their predecessors by an all-new interior and a much larger grille and head lamps. Previously available only as a chassis-cab model, the F-450 now was available as a pickup directly from Ford.[6]

text: From 2004 to 2006 offered a different bed style as well.

text: Twelfth generation (2009–2014)[edit]

text: The twelfth generation F-150 was introduced for the 2009 model year as an update of the Ford full-size truck platform. Similar to its predecessor, these trucks are distinguished by their Super Duty-style grilles and head lamps; standard cab models again have two-doors instead of four. The FlareSide bed was continued until 2010, dropped along with the manual gearbox; outside of Mexico, the Lincoln Mark LT was replaced by the F-150 Platinum. A new model for 2010 included the SVT Raptor, a dedicated off-road pickup.

text: As part of a major focus on fuel economy, the entire engine lineup for the F-150 was updated for the 2011 model year. Along with two new V8 engines, the F-150 gained a new 3.7 Liter base V6 engine, and a powerful twin-turbocharged 3.5 Liter V6, dubbed EcoBoost by Ford. An automatic transmission is the only option. Other modifications include the addition of a Nexteer Automotive Electric Power Steering (EPS) system on most models.

text: A recent study conducted by iSeeCars.com and published on the Ford Motor Company Web site listed Ford F-250 Super Duty as the top longest-lasting vehicle and Expedition, Explorer and F-150 in the top 20 longest-lasting vehicle.[7]

text: Thirteenth generation (2015–present)[edit]

text: For the 2015 model year, Ford Motor Company introduced the thirteenth-generation F-150. Without physically changing any dimensions from its predecessor, in the interest of fuel economy, designers reduced curb weight by nearly 750 pounds. In a radical change for a mass-market vehicle, much of the weight reduction stems from the change from steel to aluminum in its body structure (the majority of the frame itself remains high-strength steel).[8][9] With the lone exception of the firewall, all sheet metal used for the F-150 body is aluminum.[9][10]

text: Largely previewed by the Ford Atlas concept vehicle at the 2013 Detroit Auto Show, the styling introduced a completely new design language for the Ford F-Series; only the stepped window from the Super Duty was carried over. To prove the durability of the aluminum-intensive design, camouflaged prototypes were entered in the Baja 1000 endurance race, in which the vehicles finished.

text: To further increase fuel economy, a 3.5L V6 became the base engine with the introduction of a 2.7L EcoBoost twin-turbo V6 alongside the 3.5L version; the 5.0L V8 remained available. The 2015 F-150 is the first pickup truck with adaptive cruise control, which uses radar sensors on the front of the vehicle to maintain a set following distance between it and the vehicle ahead of it, decreasing speed if necessary.

text: Ford has made several changes to their engine lineup for the 2018 model-year pickup, which Ford has confirmed will be a member of the thirteenth generation.[11][12][13] The 3.5L base engine has been replaced with a more efficient 3.3L V6 that boasts the same power as the outgoing 3.5, but promises better mileage.[14] The new 3.3L V6 will be mated to the existing 6-speed transmission. The 2.7L and 3.5L EcoBoost engines, as well as the 5.0L V8 have had minor upgrades and improvements towards power and efficiency. The 3.5L, 2.7l EcoBoost and 5.0l V8 will be mated to the new 10-speed transmission. These 3 engines will also all feature the stop/start technology which was previously only available with the 2.7L, further improving mileage across the board.[15]

text: Ford is also introducing its first Diesel engine in an F-150, which they're calling the "Power Stroke" engine. The Diesel engine is a twin turbocharged 3.0L V6 from the "Lion" lineup of engines shared by PSA Peugot Citroën and Jaguar Land Rover. The engine will produce 440 lb-ft of torque and be mated to the new 10-speed transmission, and also feature the stop/start technology.[15][16][17]

text: Outside of new engine features, Ford has stopped offering the Sony stereo system as an option and replaced it with B&O PLAY, a sound system designed by Danish audio system manufacturer Bang & Olufsen.[15]

text: Exact mileage improvements have not been announced yet. This model will be expected to launch in the Fall of 2017, and will be American built at both the Dearborn Truck Plant in Michigan, and the Kansas City Assembly Plant in Claycomo, Missouri.[16] The F-150 is assembled at a speed of one per minute.[18]

text: Special models[edit]

text: Throughout its production, variants of the Ford F-Series has been produced to attract buyers. While these variants primarily consist of trim packages, others are high-performance versions while other variants were designed with various means of improving functionality.

text: Unibody F-Series[edit]

text: For 1961 into part of the 1963 model year, Ford offered the F-Series with a pickup bed integrated with the cab (similar to the Ford Ranchero). While still produced on a separate frame, the design simplified assembly and streamlined the exterior design of the pickup

text: Specials[edit]

text: Introduced in 1961, the Camper Special was an option package for F-Series trucks; designed for owners of slide-in truck campers, the Camper Special featured pre-wiring for the camper, heavy-duty transmission and engine cooling, and a larger alternator. Introduced for 1968, the Contractor's Special and Farm and Ranch Special featured toolboxes and heavy-duty suspension; the Explorer Special was a lower-priced version of the Ranger trim level.

text: During the 1980 redesign of the F-Series, these options were no longer continued as part of the F-Series.

text: F-150 Nite[edit]

text: Sold from 1991 to 1992 on the Ford F-150 XLT Lariat, the Nite special edition was an monochromatic option package, featuring black paint and trim with a multicolor accent stripe. For 1991, it was exclusive to the regular-cab F-150; for 1992, it was available on all bodystyles of the F-150 and introduced on the Ford Bronco.

text: The Nite edition was available with two-wheel drive or four-wheel drive with either the 5.0L or 5.8L V8; it also included a sport suspension and alloy wheels on 235/75R15 white-letter tires.

text: Eddie Bauer[edit]

text: For 1994, Ford introduced the Eddie Bauer trim level for the F-150. In a fashion similar to the same trim packages on the Aerostar, Bronco, and Explorer/Bronco II, it consisted of outdoors-themed interior trim with two-tone exterior paint.

text: SVT Lightning[edit]

text: Introduced as a 1993 model, the Ford SVT Lightning is a high-performance version of the F-150 produced by the Ford Special Vehicle Team (SVT).

text: Intended as a competitor for the Chevrolet 454SS, the SVT Lightning shared much of its structure with the F-150, but extensive modifications were made to the suspension and frame in order to improve the handling. Powered by a 240 hp version of the 5.8L V8, the Lightning used the 4-speed automatic transmission from the F-350 (normally paired with the 7.5L or Diesel V8s).

text: Though being 3 seconds slower in the 0-60 than the discontinued GMC Syclone, the Lightning retained much of the towing and payload capacity of its F-150 counterpart.

text: The Lightning was produced from 1993 to 1995; it was discontinued as Ford began design work on the 1997 F-150.

text: For 1999, the SVT Lightning returned after a three-year hiatus. As with its 1993-1995 predecessor, the design of the Lightning used the F-150 as a basis with a number of suspension modifications. Instead of a model-specific engine, the Lightning now used the 5.4L engine from the F-150; fitted with a supercharger, it produced 360 hp (increased to 380 hp in 2001). As before, the transmission was borrowed from the F-350 Diesel pickups.

text: In 2004, the Lightning was discontinued, as it was not included in the redesigned F-150 model line.

text: Harley-Davidson Edition[edit]

text: From 2000 to 2012, the Harley-Davidson Edition was an option package available on the F-150 (also the F-250/F-350 from 2004-2011). Primarily an appearance package featuring monochromatic black trim, from 2002 to 2003, the edition included a slightly detuned version of the supercharged 5.4L V8 engine from the SVT Lightning. In 2003, a 100th Anniversary Edition was produced on F-150 SuperCrews.

text: After 2008, the option package adopted many of the options featured from the Platinum trim level, featuring leather seating produced from materials reserved for Harley-Davidson biker jackets.[19] For 2012, the Harley-Davidson Edition was replaced by the Limited trim level.

text: SVT Raptor[edit]

text: For 2010, Ford introduced its second high-performance truck, the SVT Raptor. In sharp contrast to the SVT Lightning, the Raptor is based on Ford's 1000 baja truck, with modifications designed to improve its on-road performance while still including standard Fox suspension, and the most capable off-road, mass-produced vehicle available. For the 2010 model year, the base engine was a 5.4 Liter V8 producing 310 hp (230 kW), the 6.2 Liter V8 was an option added mid year. Between 2011 and 2014, a 411 hp (306 kW), 6.2 Liter V8, both were paired with a six-speed automatic was available. The Raptor features a model-exclusive suspension with long-travel springs and shocks. To make room for its larger tires, the Raptor shares only the cab with a standard F-150; the pickup bed, hood and front fenders are wider and exclusive to the model. Initially available only as a SuperCab, a SuperCrew cab was added in late 2010.

text: For the first time on a Ford in North America since 1983, the word "Ford" was spelled on the grille of the SVT Raptor in place of the Ford Blue Oval badge.

text: In late 2016, the second-generation Ford Raptor (dropping the SVT prefix) returned as a 2017 model. The 2017 Ford Raptor is based on the aluminum-body Ford F-150 introduced for 2015. In a major change, the powertrain sourced from the Ford Super Duty is replaced by a re-engineered 3.5 Liter twin-turbo EcoBoost V6 paired with an all-new 10-speed automatic transmission.[20]

text: F-150 Platinum[edit]

text: Following the 2008 discontinuation of the Lincoln Mark LT in the United States and Canada,[21] the truck remained in production in Mexico until 2014.

text: For 2009, to replace the Mark LT, Ford moved into the luxury pickup truck segment with the Platinum trim level. Combining much of the content and luxury features of the Mark LT with more subdued styling, the F-150 Platinum saw more success than either the Lincoln Blackwood or Lincoln Mark LT. In 2013, the Platinum trim level was expanded to the F-250 and F-350 Super Duty pickup trucks.

text: F-150 Tremor[edit]

text: For the 2014 model year, Ford introduced the Tremor model of the F-150. The Tremor was released as high-performance sport truck for street truck enthusiasts. The regular-cab Tremor is based on the style of the FX Appearance Package with the 3.5 Liter EcoBoost engine and a 4.10 rear axle. The interior uses a console-mounted shifter, custom bucket seats and a flow-through center console not found in any other F-150. The Tremor is available in both 4x2 and 4x4. Both options feature an electronic locking rear differential and customized suspension. There were 2,230 Tremors built.[citation needed]

text: Motorsports[edit]

text: The truck won the San Felipe 250 eight times between 1999 and 2007.

text: Greg Biffle won the 2000 NASCAR Craftsman Truck Series.

text: Drivers such as Roger Norman and Larry Roeseler won the Primm 300 in 2003, 2007 and 2008.

text: In 2008, Ford announced its entrance into the Baja 1000 class-eight race for moderately modified, full-size pickups. The driver of record was Steve Oligos, supported by co-drivers Randy Merritt, Greg Foutz, and Bud Brutsman.[22] The vehicle was built with collaboration between the Ford Special Vehicle Team (SVT), Ford Racing, and Foutz Motorsports, Inc. The Ford F-150 SVT Raptor R completed the 2008 41st Tecate SCORE Baja 1000 race in 25.28:10,[23] and ranked third in its class.[24] Tavo Vildosola and Gus Vildosola won the event in 2010.

text: In the Best in the Desert race series, an F-150 SVT Raptor R completed the "Terrible's 250" race, placing second overall in the class 8000.[25]

text: In January 2010, a single Raptor SVT (No. 439), driven by Chilean driver Javier Campillay, competed in the Argentina-Chile Dakar Rally. However, the pickup was unable to finish due to a catch-up crash with another car in the middle of the road during stage seven. In January 2011, two Raptors started in the Argentina-Chile Dakar Rally in Buenos Aires, with Campillay driving the more reliable Raptor (No. 375), and American female driver Sue Mead driving a T2 Raptor (No. 374). Mead crossed the finish line in Buenos Aires and won the "super production" class, the first North American class win in Dakar history. Campillay was unable to finish the 12th stage after losing time due to mechanical failure during the 11th stage, which led to his disqualification for failing to reach the race camp by the designated deadline.

text: Awards and recognition[edit]

text: The Ford F-150 has won numerous awards; in 2009 alone, it received:[26]

text:
Motor Trend 2009 Truck of the Year Award
2009 Best Redesigned Vehicle from Kelley Blue Book's kbb.com
Top honors as the "truck of Texas" as well as the "best luxury pickup" for the 2009 F-150 King Ranch from Texas Auto Writers Association
Automotive Excellence Award in the Workhorse Category from Popular Mechanics
"Top safety pick" from the Insurance Institute for Highway Safety for its standard safety technology: safety canopy side curtain air bags and AdvanceTrac with roll stability control
Residual Value Award from Automotive Leasing Guide (ALG) for retaining the highest percentage of its original price among 2009 full-size light-duty pickups at the end of a conventional three-year lease, based on ALG projections
Motor Trend's Truck Trend Top 5 Pickups from Specialty Equipment Market Association (SEMA) for 2009 Ford F-150 Heavy Duty DeWalt Contractor Concept
Accessory-Friendly Pickup Design Award from SEMA
"Best overall half-ton pickup" from PickupTrucks.com

tag: ul

text: Sales[edit]

text: Quantities of Ford F-Series sold.

text:
Calendar Year
United States
Canada

1997
746,111[27]

1998
836,629

1999[28]
869,001

2000
876,716

2001[29]
911,597

2002[30]
813,701

2003
845,586
68,375

2004[31]
939,511
71,790

2005
901,463
69,549

2006[32]
796,039
72,128

2007
690,589
73,618

2008[33]
515,513
67,749

2009[34]
413,625
81,396

2010[35]
528,349
97,913[36]

2011
584,917
96,325

2012
645,316
106,358[37]

2013
763,402[38]
122,325

2014
753,851[39]
126,277[40]

2015
780,354[41]
118,837

2016
820,799[42]
145,409[43]

2017
896,764
155,290

tag: table

text: Variants[edit]

text: Medium-duty trucks[edit]

text: For most of its production, the F-Series was sold in a medium-duty conventional truck configuration alongside the traditional pickup trucks. Beginning in 1948 with the 1½ ton F-5 (later F-500), the medium-duty trucks ranged up to the F-8 (F-800). Prior to the 1957 introduction of the Ford C-Series tilt-cab, the medium-duty range was offered as both a conventional and in a COE (cabover) configuration.

text: Following the introduction of the fifth-generation F-Series in 1967, the medium-duty trucks were designed separately from the pickup truck range. Although remaining part of the F-Series range, the medium-duty trucks shared only the cab and interior with the F-Series pickup trucks. Since 1967, the cab design has changed only in 1980 and in 2000. Redesigned on an all-new chassis, the 2017 F-Series medium-duty trucks retain an updated version of the 2000-2016 F-650/F750 cab.

text: The medium-duty F-Series served as the donor platform for the B-Series cowled bus chassis produced from 1948 to 1998. Produced primarily for school bus bodies, the B-Series was discontinued as part of the sale of the Ford heavy-truck line to Freightliner in 1996.

text: Heavy-duty trucks[edit]

text: Above its medium-duty truck ranges, the Ford F-Series was used as a heavy-truck chassis during its early production. In 1951, Ford debuted its "Big Job" line, denoting the F-8 conventional.[44] In 1958, the "Super Duty" and "Extra Heavy Duty" replaced the Big Job trucks, marking the debut of the Super Duty V8 engine line.[45] In 1963, the N-Series became the first short-hood conventional built by Ford, replacing the F-900 Super Duty/Extra Heavy Duty. Although based on an all-new chassis and separate bodywork, the cab was sourced from the F-Series.

text: In 1970, Ford introduced the L-Series "Louisville" line of conventional trucks, moving all heavy truck development away from the F-Series. The L-Series/Aeromax would remain in production through 1998, as Ford exited the heavy-truck segment.

text: Vans[edit]

text: From 1948 until 1960, Ford manufactured the F-Series in a panel van configuration, largely replacing it with the Econoline in 1961. In contrast to General Motors, the panel van was never produced in a passenger "carryall" variant, such as the Chevrolet/GMC Suburban.

text: For much of its production life, the Ford E-Series vans shared a high degree of mechanical commonality with the F-Series; in the late 1970s, some body components were shared. Since the 1990s, this changed somewhat, as Ford updated the F-Series several times since 1992 while the E-Series continued on with very few changes; no powertrains were shared as of 2016.

text: Export[edit]

text: As of 2018, outside of the United States, Canada, and Mexico, the Ford F-150 is officially sold in most Caribbean countries (except Trinidad and Tobago, Saint Kitts and Nevis and Cuba), Suriname, Ecuador, Peru, Chile, the Middle East (including Afghanistan), Iceland, Angola, Burkina Faso, Cameroon, Cape Verde, Democratic Republic of Congo, Ethiopia, Gabon, Ghana, Ivory Coast, Liberia, Nigeria, Senegal, Sierra Leone, Madagascar, the Dutch territories of Aruba, Curaçao, Saint Maarten and the British overseas territory of the Cayman Islands. The SVT Raptor is sold in the United States, Canada, Mexico, the Middle East (including Afghanistan), China, Ecuador, Chile and Peru. Both are available in LHD only.

text: In Mexico, the F-150 (XLT and higher trim levels) is called the "Ford Lobo" while the F-150 SVT Raptor is called the "Ford Lobo Raptor". The F-150 XL is called F-150 XL.

text: There is a strong grey market presence of Ford F-Series trucks around the world, most notably in Europe, China, and Australia, and usually driven by wealthy car enthusiasts, as the higher end trim models are the most sought-after versions.

text: In Bolivia, Ford F-series truck are imported from the United States. F-150 single, super cab and crew cab are available with short and long bed. F-series Heavy Duty like F-250, F-350 are available in Super Cab and Crew cab with long bed, but the F-450 is available only in a chassis version. The F-150 Raptor is available, too.

text: In Australia, Ford F-series trucks are imported and converted to right-hand drive by several Australian importers, mostly by the Harrison Motoring Group, which as become the largest importer of F-Series vehicles in the Southern Hemisphere. Harrison F-Trucks have become Australia's number one converter and supplier of the famous Ford F-Series badges.

text: In the United Kingdom, most imported Ford F-Series trucks are the F-150 model, and usually the higher-end four door versions.

text: Right-hand drive versions of the F-Series for the United Kingdom and Australia were manufactured in Brazil.

text: In Argentina and Brazil, the petrol engines are often converted to also run with alternative fuels, E-96h (Brazilian-spec ethanol) and compressed natural gas (CNG). Biodiesel also is used in Diesel engines.[citation needed]

text: The addition of the 3.0l V6 turbo diesel engine could potentially make the Ford F-150 go global and in both LHD and RHD from the factory.


document_title: Nature (philosophy)

question_text: which philosopher advocated the idea of return to nature

text: Nature (philosophy)

text: Classical nature and Aristotelian metaphysics[edit]

text: The Physics (from ta phusika "the natural [things]") is Aristotle's principal work on nature. In Physics II.1, Aristotle defines a nature as "a source or cause of being moved and of being at rest in that to which it belongs primarily".[1] In other words, a nature is the principle within a natural raw material that is the source of tendencies to change or rest in a particular way unless stopped. For example, a rock would fall unless stopped. Natural things stand in contrast to artifacts, which are formed by human artifice, not because of an innate tendency. (The raw materials of a bed have no tendency to become a bed.) In terms of Aristotle's theory of four causes, the word natural is applied both to the innate potential of matter cause and the forms which the matter tends to become naturally.[2]

text: According to Leo Strauss,[3] the beginning of Western philosophy involved the "discovery or invention of nature" and the "pre-philosophical equivalent of nature" was supplied by "such notions as 'custom' or 'ways'". In ancient Greek philosophy on the other hand, Nature or natures are ways that are "really universal" "in all times and places". What makes nature different is that it presupposes not only that not all customs and ways are equal, but also that one can "find one's bearings in the cosmos" "on the basis of inquiry" (not for example on the basis of traditions or religion). To put this "discovery or invention" into the traditional terminology, what is "by nature" is contrasted to what is "by convention". The concept of nature taken this far remains a strong tradition in modern western thinking. Science, according to Strauss' commentary of Western history is the contemplation of nature, while technology was or is an attempt to imitate it.[4]

text: Going further, the philosophical concept of nature or natures as a special type of causation - for example that the way particular humans are is partly caused by something called "human nature" is an essential step towards Aristotle's teaching concerning causation, which became standard in all Western philosophy until the arrival of modern science.

text: Whether it was intended or not, Aristotle's inquiries into this subject were long felt to have resolved the discussion about nature in favor of one solution. In this account, there are four different types of cause:

text:
The material cause is the "raw material" - the matter which undergoes change. One of the causes of a statue being what it is might be that it is bronze. All meanings of the word nature encompass this simple meaning.
The efficient cause is the motion of another thing, which makes a thing change, for example a chisel hitting a rock causes a chip to break off. This is the way which the matter is forming into a form so that it become substance like what Aristotle said that a substance must have a form and matter in order to call it substance. This is the motion of changing a single being into two. This is the most obvious way in which cause and effect works, as in the descriptions of modern science. But according to Aristotle, this does not yet explain that of which the motion is, and we must "apply ourselves to the question whether there is any other cause per se besides matter".[5]
The formal cause is the form or idea which serves as a template towards which things develop - for example following an approach based upon Aristotle we could say that a child develops in a way partly determined by a thing called "human nature". Here, nature is a cause.
The final cause is the aim towards which something is directed. For example, a human aims at something perceived to be good, as Aristotle says in the opening lines of the Nicomachean Ethics.

text: The formal and final cause are an essential part of Aristotle's "Metaphysics" - his attempt to go beyond nature and explain nature itself. In practice they imply a human-like consciousness involved in the causation of all things, even things which are not man-made. Nature itself is attributed with having aims.[6]

text: The artificial, like the conventional therefore, is within this branch of Western thought, traditionally contrasted with the natural. Technology was contrasted with science, as mentioned above. And another essential aspect to this understanding of causation was the distinction between the accidental properties of a thing and the substance - another distinction which has lost favor in the modern era, after having long been widely accepted in medieval Europe.

text: To describe it another way, Aristotle treated organisms and other natural wholes as existing at a higher level than mere matter in motion. Aristotle's argument for formal and final causes is related to a doctrine about how it is possible that people know things: "If nothing exists apart from individual things, nothing will be intelligible; everything will be sensible, and there will be no knowledge of anything—unless it be maintained that sense-perception is knowledge".[7] Those philosophers who disagree with this reasoning therefore also see knowledge differently from Aristotle.

text: Aristotle then, described nature or natures as follows, in a way quite different from modern science...

text:
"Nature" means:
(a) in one sense, the genesis of growing things — as would be suggested by pronouncing the υ of φύσις[8] long—and
(b) in another, that immanent thing from which a growing thing first begins to grow.
(c) The source from which the primary motion in every natural object is induced in that object as such. All things are said to grow which gain increase through something else by contact and organic unity (or adhesion, as in the case of embryos). Organic unity differs from contact; for in the latter case there need be nothing except contact, but in both the things which form an organic unity there is some one and the same thing which produces, instead of mere contact, a unity which is organic, continuous and quantitative (but not qualitative). Again, "nature" means
(d) the primary stuff, shapeless and unchangeable from its own potency, of which any natural object consists or from which it is produced; e.g., bronze is called the "nature" of a statue and of bronze articles, and wood that of wooden ones, and similarly in all other cases. For each article consists of these "natures," the primary material persisting. It is in this sense that men call the elements of natural objects the "nature," some calling it fire, others earth or air or water, others something else similar, others some of these, and others all of them. Again in another sense "nature" means
(e) the substance of natural objects; as in the case of those who say that the "nature" is the primary composition of a thing, or as Empedocles says: Of nothing that exists is there nature, but only mixture and separation of what has been mixed; nature is but a name given to these by men. Hence as regards those things which exist or are produced by nature, although that from which they naturally are produced or exist is already present, we say that they have not their nature yet unless they have their form and shape. That which comprises both of these exists by nature; e.g. animals and their parts. And nature is both the primary matter (and this in two senses: either primary in relation to the thing, or primary in general; e.g., in bronze articles the primary matter in relation to those articles is bronze, but in general it is perhaps water—that is if all things which can be melted are water) and the form or essence, i.e. the end of the process, of generation. Indeed from this sense of "nature," by an extension of meaning, every essence in general is called "nature," because the nature of anything is a kind of essence. From what has been said, then, the primary and proper sense of "nature" is the essence of those things which contain in themselves as such a source of motion; for the matter is called "nature" because it is capable of receiving the nature, and the processes of generation and growth are called "nature" because they are motions derived from it. And nature in this sense is the source of motion in natural objects, which is somehow inherent in them, either potentially or actually.

text: It has been argued, as will be explained below, that this type of theory represented an oversimplifying diversion from the debates within Classical philosophy, possibly even that Aristotle saw it as a simplification or summary of the debates himself. But in any case the theory of the four causes became a standard part of any advanced education in the Middle Ages.

text: Modern science and laws of nature: trying to avoid metaphysics[edit]

text: In contrast, Modern Science took its distinctive turn with Francis Bacon, who rejected the four distinct causes, and saw Aristotle as someone who "did proceed in such a spirit of difference and contradiction towards all antiquity: undertaking not only to frame new words of science at pleasure, but to confound and extinguish all ancient wisdom". He felt that lesser known Greek philosophers such as Democritus "who did not suppose a mind or reason in the frame of things", have been arrogantly dismissed because of Aristotelianism leading to a situation in his time wherein "the search of the physical causes hath been neglected, and passed in silence".[10]

text: And so Bacon advised...

text: Physic doth make inquiry, and take consideration of the same natures : but how? Only as to the material and efficient causes of them, and not as to the forms. For example; if the cause of whiteness in snow or froth be inquired, and it be rendered thus, that the subtile intermixture of air and water is the cause, it is well rendered ; but, nevertheless, is this the form of whiteness? No; but it is the efficient, which is ever but vehiculum formæ. This part of metaphysique I do not find laboured and performed...

text: In his Novum Organum Bacon argued that the only forms or natures we should hypothesize are the "simple" (as opposed to compound) ones such as the ways in which heat, movement, etc. work. For example, in aphorism 51 he writes:

text: 51. The human understanding is, by its own nature, prone to abstraction, and supposes that which is fluctuating to be fixed. But it is better to dissect than abstract nature; such was the method employed by the school of Democritus, which made greater progress in penetrating nature than the rest. It is best to consider matter, its conformation, and the changes of that conformation, its own action, and the law of this action or motion, for forms are a mere fiction of the human mind, unless you will call the laws of action by that name.

text: Following Bacon's advice, the scientific search for the formal cause of things is now replaced by the search for "laws of nature" or "laws of physics" in all scientific thinking. To use Aristotle's well-known terminology these are descriptions of efficient cause, and not formal cause or final cause. It means modern science limits its hypothesizing about non-physical things to the assumption that there are regularities to the ways of all things which do not change.

text: These general laws, in other words, replace thinking about specific "laws", for example "human nature". In modern science, human nature is part of the same general scheme of cause and effect, obeying the same general laws, as all other things. The above-mentioned difference between accidental and substantial properties, and indeed knowledge and opinion, also disappear within this new approach that aimed to avoid metaphysics.

text: As Bacon knew, the term "laws of nature" was one taken from medieval Aristotelianism. St Thomas of Aquinas for example, defined law so that nature really was legislated to consciously achieve aims, like human law: "an ordinance of reason for the common good, made by him who has care of the community and promulgated".[11] In contrast, roughly contemporary with Bacon, Hugo Grotius described the law of nature as "a rule that [can] be deduced from fixed principles by a sure process of reasoning".[12] And later still, Montesquieu was even further from the original legal metaphor, describing laws vaguely as "the necessary relations deriving from the nature of things".[13]

text: One of the most important implementors of Bacon's proposal was Thomas Hobbes, whose remarks concerning nature are particularly well-known. His most famous work, Leviathan, opens with the word "Nature" and then parenthetically defines it as "the art whereby God hath made and governes the world". Despite this pious description, he follows a Baconian approach. Following his contemporary, Descartes, Hobbes describes life itself as mechanical, caused in the same way as clockwork:

text: For seeing life is but a motion of Limbs, the beginning whereof is in some principall part within; why may we not say, that all Automata (Engines that move themselves by springs and wheeles as doth a watch) have an artificiall life?

text: On this basis, already being established in natural science in his lifetime, Hobbes sought to discuss politics and human life in terms of "laws of nature". But in the new modern approach of Bacon and Hobbes, and before them Machiavelli (who however never clothed his criticism of the Aristotelian approach in medieval terms like "laws of nature"),[14] such laws of nature are quite different to human laws: they no longer imply any sense of better or worse, but simply how things really are, and, when in reference to laws of human nature, what sorts of human behavior can be most relied upon.

text: "Late modern" nature[edit]

text: Having disconnected the term "law of nature" from the original medieval metaphor of human-made law, the term "law of nature" is now used less than in early modern times.

text: To take the critical example of human nature, as discussed in ethics and politics, once early modern philosophers such as Hobbes had described human nature as whatever you could expect from a mechanism called a human, the point of speaking of human nature became problematic in some contexts.

text: In the late 18th century, Rousseau took a critical step in his Second Discourse, reasoning that human nature as we know it, rational, and with language, and so on, is a result of historical accidents, and the specific up-bringing of an individual. The consequences of this line of reasoning were to be enormous. It was all about the question of nature. In effect it was being claimed that human nature, one of the most important types of nature in Aristotelian thinking, did not exist as it had been understood to exist.

text: The survival of metaphysics[edit]

text: The approach of modern science, like the approach of Aristotelianism, is apparently not universally accepted by all people who accept the concept of nature as a reality which we can pursue with reason.

text: Bacon and other opponents of Metaphysics claim that all attempts to go beyond nature are bound to fall into the same errors, but Metaphysicians themselves see differences between different approaches.

text: Immanuel Kant for example, expressed the need for a Metaphysics in quite similar terms to Aristotle.

text: ...though we cannot know these objects as things in themselves, we must yet be in a position at least to think them as things in themselves; otherwise we should be landed in the absurd conclusion that there can be appearance without anything that appears.

text: As in Aristotelianism then, Kantianism claims that the human mind must itself have characteristics which are beyond nature, metaphysical, in some way. Specifically, Kant argued that the human mind comes ready-made with a priori programming, so to speak, which allows it to make sense of nature.

text: The study of nature without metaphysics[edit]

text: Authors from Nietzsche to Richard Rorty have claimed that science, the study of nature, can and should exist without metaphysics. But this claim has always been controversial. Authors like Bacon and Hume never denied that their use of the word "nature" implied metaphysics, but tried to follow Machiavelli's approach of talking about what works, instead of claiming to understand what seems impossible to understand.


document_title: Canada Act 1982

question_text: when did canada gain independence from great britain

text: Canada Act 1982

text: History[edit]

text: Canada's modern political history as a union of previously separate provinces began with the British North America Act, 1867 (currently officially called the Constitution Act, 1867).[2] This act combined the Province of Canada (now Ontario and Quebec) with Nova Scotia and New Brunswick into a Dominion within the British Empire.[2] Canada adopted a Westminster style government with a Parliament of Canada. A Governor General fulfilled the constitutional duties of the British Sovereign on Canadian soil. Similar arrangements applied within each province.

text: Despite this autonomy, the United Kingdom still had the power to legislate for Canada. The Statute of Westminster 1931 removed this power of the British Parliament for Canada,[3] as well as for the other British Dominions (Australia [adopted 1942], the Irish Free State, New Zealand [adopted 1947], the Union of South Africa, and the Dominion of Newfoundland [never ratified, joined Canada in 1949]), unless (sec. 4) the Dominion requested and consented to Imperial legislation. Also, the British North America (No. 2) Act, 1949 was passed by the British Parliament, giving the Parliament of Canada significant constitutional amending powers.[4]

text: However, with Canada's agreement at the time, under the Statute of Westminster (sec. 7(1)) the British Parliament also retained the power to amend the key Canadian constitutional statutes, namely the British North America Acts.[5][6][7] In effect, an Act of the British Parliament was required to make certain changes to the Canadian constitution.[8] Delay in the patriation of the Canadian constitution was due in large part to the lack of agreement concerning a method for amending the constitution that would be acceptable to all of the provinces, particularly Quebec.[9]

text: Enactment of the Act[edit]

text: The Canada Act 1982 was passed by the Parliament of the United Kingdom in response to the request from the Parliament of Canada to take over authority for amending its own constitution.[10] [11] After unpromising negotiations with the provincial governments, Pierre Trudeau proclaimed that the federal Parliament would unilaterally patriate the constitution. After numerous references by the provinces, the Supreme Court of Canada ruled in the Patriation Reference that provincial consent was not legally necessary, but to do so without substantial consent would be contrary to a longstanding constitutional convention.[12] Trudeau succeeded in convincing nine provinces out of ten by agreeing to the addition of a Notwithstanding Clause to limit the application of the Canadian Charter of Rights and Freedoms[13] as a result of discussions during a First Ministers' conference and other minor changes in November 1981.[14]

text: In the UK, 44 Members of Parliament voted against the Act, including 24 Conservative and 16 Labour MP's, citing concerns over Canada's past mistreatment of Quebec and Aboriginal peoples (as recalled with frustration by Jean Chrétien in his memoirs Straight from the Heart); overall there was little opposition from the British government to passing the Act.[citation needed] However, new research into documents of the Thatcher government indicate that Britain had serious concerns about the inclusion of the Canadian Charter of Rights and Freedoms within the Canada Act. Part of this concern stemmed from letters of protest the British received about it from provincial actors, but also because the Charter undermined the principle of parliamentary supremacy, which until that time had always been a core feature of every government practising the Westminster system.[15]

text: Through section 2 of the Canada Act 1982, the United Kingdom ended its involvement with further amendments to the Canadian constitution.[16] The procedure for amending the Constitution Act, 1982 must comply with its Part V, instead of the usual parliamentary procedure requiring the monarch's Royal Assent for enacting legislation.

text: Proclamation by the Queen of Canada[edit]

text: While the Canada Act 1982 received royal assent on March 29, 1982 in London, it was not until the Queen visited Canada the following month [17] that the Constitution Act, 1982, its Canadian equivalent, was proclaimed by letters patent as a statutory instrument by the Queen during her presence in Canada.[18]

text: Canada's Constitution Act, 1982 was signed into law by Elizabeth II as Queen of Canada on April 17, 1982 on Parliament Hill in Ottawa.[19][18] Queen Elizabeth's constitutional powers over Canada were not affected by the Act, and she remains Queen and Head of State of Canada.[20] Canada has complete sovereignty as an independent country, however, and the Queen's role as monarch of Canada is separate from her role as the British monarch or the monarch of any of the other Commonwealth realms.[21]