Fait mathématique: 8071 is the number of connected graphs with 11 edges.
Culture générale: 8071 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Date historique: February 4th is the day in 960 that the coronation of Zhao Kuangyin as Emperor Taizu of Song, initiating the Song Dynasty period of China that would last more than three centuries.