Fatto generale: 763 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 763 is the smallest number whose 4^{th} power contains every digit at least once.
Trivia: 763 is a boring number.
Data storica: February 1st is the day in 1893 that Thomas A. Edison finishes construction of the first motion picture studio, the Black Maria in West Orange, New Jersey.