Fait général: 1556 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 1556 is the sum of the squares.
Culture générale: 1556 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Date historique: April 4th is the day in 1841 that William Henry Harrison dies of pneumonia becoming the first President of the United States to die in office and the one with the shortest term served.