General fact: 1505 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Mathematical fact: 1505 is the number of necklaces possible with 6 beads, each being one of 5 colors.
Trivia: 1505 is an unremarkable number.
Historical date: February 13th is the day in 1462 that Treaty of Westminster is finalised between Edward IV of England and the Scottish Lord of the Isles.