Fait général: 28560 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 28560 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Culture générale: 28560 is an unremarkable number.
Date historique: March 11th is the day in 1872 that the Meiji Japanese government officially annexes the Ryukyu Kingdom into what would become the Okinawa prefecture.