80 (number)

80 ( eighty or huitante or octante ) is the Entier naturalness which follows 79 and which precedes 81.

In mathematics

80 is:

a Number Harshad: 80 is divisible by 8 = 8 + 0
a hexagonal pyramidal Nombre.

In other fields

80 is also:

the Atomic number of the mercury, a Metal of transition.
the n° of the French Department of the Somme.
the age reached by an octogenarian
Present in the title of the book the round the world tour in eighty days of Jules Verne
the number of model of the Computer S TRS-80, IBM 80, Sinclair ZX80 and Aster CT-80
the number of model of the Soviet Tank T-80, of the Rumanian fighter plan IAR 80 and of the military aircrafts states-uniens MD-80, Ar 80 and P-80
the limiting age of the cardinal to vote at the time of a papal election in one Conclave
the length of the beach Australia Eighty Mile Beach
duration of the war of independence of the United Provinces (1568-1648)
the designation of the Interstate 80 , a road which crosses the the United States of the California until the New Jersey.
the number of the European Road E80 which goes from Lisbon to the Portugal to Gürbulak in Turkey.
the number of port TCP/IP standard for a connection HTTP
the photographic filters 80A, 80B and 80C to correct a red coloring due to a lighting with tungsten.
the identifier ISBN for the books published in Czech Republic and historical Slovakia
Years: -80, 80 or 1980.

Linguistics

French has three words for the number 80 : eighty , huitante and octante . Today, eighty is most widespread by far in the francophonie, huitante is current in several cantons of French-speaking Switzerland, and octante quasi disappeared. However, these the last two terms were more largely used in the past:

Huitante

This evolution of the Latin form octoginta is oldest. One finds it in the form “oitante” at the 12th century century (Voyage of Charlemagne, ED. Paul Aebischer, 96 and 99). It appears in the first and the last edition of the Dictionnaire of the French Academy.

A quotation not allotted by Littré in its dictionary attests the use of this term at the 14th century: .

Littré still quotes this use of huitante of Castil-Blaze (beginning of the 19th century):

The Revolt of the women, ballet where Marie Taglioni shone in the forefront, surrounded by huitante amazones, escrimant lance and arquebus, obtained an extraordinary success , Castil-Blaze, Hist. of Académ. of music, T. II, p. 240.

Today huitante is always used officially in the Swiss cantons of Vaud, of Freiburg and of the Valais, whereas the remainder of the francophonie uses eighty . This is why this term is generally noted by the dictionaries like a helvetism, though its surface of use was extended much in the past.

Octante

The term octante is a repair of the preceding term according to Latin octoginta . It appears in all the editions of the Dictionnaire of the French Academy, contrary to huitante, and was advised, with seventy and ninety , by the official Instructions French of 1945 to facilitate the training of calculation.

At the end of the 19th century, Littré note, in its dictionary, that this term is out-of-date, but is still of use in the South of France. The Argentinian writer Jorge Shine Borges, which lived in Switzerland at the beginning of the twentieth century, before the First World War, announced that the use of the term octante was largely widespread with Geneva (Swiss) ; the following quotation shows however that it was already out-of-date in French-speaking Switzerland during the Inter-war period:

Our anc. texts very often give octante ; it is out of custom. out of SR French Pierrehumbert, William. Historical dictionary of the speech neuchâtelois and French-speaking Switzerland. Neuchâtel, Attinger 1926. Quoted in the remark of the article Huitante of the French-speaking Switzerland Dictionary , ED. Zoe, Geneva 2004.

Today, this term is not used any more, except in some villages of the Swiss cantons of Freiburg and of the Valais.

See too

20, 70 and 90
vigesimal System
Numbers in French
Law of the 80/20

External bonds

Article relating to the opposition " huitante" " quatre-vingts" in [[20 minutes] Romandie]

Zh-yue: 80

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