Fait mathématique: 97939 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Culture générale: 97939 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Date historique: February 23rd is the day in 1886 that Charles Martin Hall produced the first samples of man-made aluminum, after several years of intensive work.