80 may refer to: *

80 (number) 80 (eighty) is the natural number following 79 and preceding 81. In mathematics 80 is: * the sum of Euler's totient function φ(''x'') over the first sixteen integers. * a semiperfect number, since adding up some subsets of its divisors (e. ...

* one of the years

80 BC __NOTOC__ Year 80 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Sulla and Metellus Pius (or, less frequently, year 674 ''Ab urbe condita''). The denomination 80 BC for this year has bee ...

AD 80 __NOTOC__ AD 80 (LXXX) was a leap year starting on Saturday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Augustus and Domitianus (or, less frequently, year 833 ''Ab urb ...

1980 Events January * January 4 – U.S. President Jimmy Carter proclaims a grain embargo against the USSR with the support of the European Commission. * January 6 – Global Positioning System time epoch begins at 00:00 UTC. * January 9 – ...

2080 In contemporary history, the third millennium of the anno Domini or Common Era in the Gregorian calendar is the current millennium spanning the years 2001 to 3000 ( 21st to 30th centuries). Ongoing futures studies seek to understand what is l ...

* '' B. B. King & Friends: 80'', an album released in 2005 * ''80'' (Tolis Voskopoulos album), released in 1980 * "80", a song by Green Day from their 1991 album ''

Kerplunk! ''Kerplunk'' (stylized as ''Kerplunk!'') is the second studio album by American rock band Green Day, released on December 17, 1991, by Lookout! Records. ''Kerplunk'' was Green Day's last independent release on the Lookout Records label, and was ...

'' *

80 Sappho Sappho (minor planet designation: 80 Sappho) is a large, S-type (stony) main-belt asteroid. It was discovered by English astronomer Norman Pogson on May 2, 1864, and is named after Sappho, the Archaic Greece poet. The asteroid is orbiting the S ...

, a main-belt asteroid

Vehicles

Tatra 80 The Tatra 80 is a Czechoslovak luxury full-size car built by Tatra between 1931 and 1935. History Hans Ledwinka designed the car in 1930. It was launched in 1931, the same year as the Tatra 70, and the two models have the same backbone chassis a ...

, a full-size luxury car *

Audi 80 The Audi 80 is a compact executive car produced by the Audi subdivision of the Volkswagen Group across four generations from 1966 to 1996. It shared its platform with the Volkswagen Passat from 1973 to 1986 and was available as a saloon, and s ...

, a compact executive car * Rover 80, a saloon *

Boeing 80 The Boeing 80 was an American airliner of the 1920s. A three-engined biplane, the Model 80 was built by the Boeing Airplane Company for Boeing's own airline, Boeing Air Transport, successfully carrying both airmail and passengers on scheduled se ...

, a late-1920s Boeing aircraft

Vehicles

See also