Hecho matemático: 2615 is the number of functions from 9 unlabeled points to themselves.
Trivia: 2615 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fecha histórica: February 27th is the day in 1560 that the Treaty of Berwick, which would expel the French from Scotland, is signed by England and the Congregation of Scotland.