Foot (unit)

====France====

In 1799 the metre became the official unit of length in [[France]]. This was not fully enforced, and in 1812 [[Napoleon]] introduced the system of ''[[mesures usuelles]]'' which restored the traditional French measurements in the retail trade, but redefined them in terms of metric units. The foot, or ''pied métrique'', was defined as one third of a metre. This unit continued in use until 1837.<ref name="historique">{{cite web
 |url         = http://www.industrie.gouv.fr/metro/aquoisert/metre.htm
 |title       = Un historique du mètre
 |language    = fr
 |author      = Denis Février
 |publisher   = Ministère de l'Économie, des Finances et de l'Industrie
 |access-date  = March 10, 2011
|url-status  = live
 |archive-url  = https://web.archive.org/web/20110228185545/http://www.industrie.gouv.fr/metro/aquoisert/metre.htm
 |archive-date = February 28, 2011
|df          = mdy-all
}}</ref>