Fatto generale: 6522 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 6522 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 6522 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: November 8th is the day in 1620 that the Battle of White Mountain takes place near Prague, ending in a decisive Catholic victory in only two hours.