Fatto generale: 2644 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 2644 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 2644 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: March 28th is the day in 1979 that the British House of Commons passes a vote of no confidence against James Callaghan's government, precipitating a general election.