Fatto generale: 1477 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 1477 is a value of n for which n!.
Trivia: 1477 is an unremarkable number.
Data storica: January 16th is the day in 27 BC that Gaius Julius Caesar Octavianus is granted the title Augustus by the Roman Senate, marking the beginning of the Roman Empire.