Fait général: 5171 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 5171 is an uninteresting number.
Culture générale: 5171 is an uninteresting number.
Date historique: February 26th is the day in 1920 that the first German Expressionist film and early horror movie, Robert Wiene's The Cabinet of Dr. Caligari, premièred in Berlin.