Hecho general: 2504 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 2504 is an uninteresting number.
Trivia: 2504 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fecha histórica: 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.