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Wikipedia @ 20 is a book of essays about Wikipedia published by the MIT Press in late 2020, marking 20 years since the creation of Wikipedia.It was edited by academic and author Joseph M. Reagle Jr. and social researcher Jackie Koerner.
In some countries, the number 20 is used as an index in measuring visual acuity. 20/20 indicates normal vision at 20 feet, although it is commonly used to mean "perfect vision" in countries using the Imperial system.
The United States twenty-dollar bill (US$20) is a denomination of U.S. currency.A portrait of Andrew Jackson, the seventh U.S. president (1829–1837), has been featured on the obverse of the bill since 1928; the White House is featured on the reverse.
Happy birthday, Wikipedia! — Preceding unsigned comment added by 68.179.134.183 20:31, 14 November 2023 (UTC) []; Happy birthday, Wikipedia! The whole wiki has been, and still is, the most reliable wiki of all wikis.I’m super late, but keep thriving, Wikipedia!
Twenty or 20 may refer to: 20 (number), the natural number following 19 and preceding 21; one of the years 20 BC, AD 20, 1920, 2020; Science.
Wikipedia was launched on January 15, 2001 [18] (referred to as Wikipedia Day) as a single English language edition with the domain name www.wikipedia.com, [W 6] and was announced by Sanger on the Nupedia mailing list. [20] The name originated from a blend of the words wiki and encyclopedia.
Pages for logged out editors learn more. Contributions; Talk; Wikipedia: 20
November 20 is the 324th day of the year (325th in leap years) in the Gregorian calendar; 41 days remain until the end of the year. Events. Pre-1600. 284 – ...