Fait mathématique: 6714 is the index of a triangular number containing only 3 different digits.
Culture générale: 6714 is an unremarkable number.
Date historique: May 19th is the day in 1919 that Mustafa Kemal Atatürk lands at Samsun on the Anatolian Black Sea coast, initiating what is later termed the Turkish War of Independence.