Fait mathématique: 5723 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Culture générale: 5723 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Date historique: September 1st is the day in 1951 that the United States, Australia and New Zealand sign a mutual defense pact, called the ANZUS Treaty.