Fatto generale: 1277 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 1277 is an unremarkable number.
Trivia: 1277 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: June 30th is the day in 1688 that the Immortal Seven issue the Invitation to William (continuing the English rebellion from Rome), which would culminate in the Glorious Revolution.