Fait mathématique: 4989 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Culture générale: 4989 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Date historique: August 28th is the day in 475 that the Roman general Orestes forces western Roman Emperor Julius Nepos to flee his capital city, Ravenna.