Fait général: 21751 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 21751 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Culture générale: 21751 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Date historique: July 20th is the day in 1960 that Ceylon (now Sri Lanka) elects Sirimavo Bandaranaike Prime Minister, the world's first elected female head of government.