Fait mathématique: 17417 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Culture générale: 17417 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Date historique: September 7th is the day in 1822 that Dom Pedro I declares Brazil independent from Portugal on the shores of the Ipiranga Brook in São Paulo.