Fatto generale: 21176 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 21176 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 21176 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: December 22nd is the day in 1807 that the Embargo Act, forbidding trade with all foreign countries, is passed by the U.S. Congress, at the urging of President Thomas Jefferson.