Fatto generale: 1015 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 1015 is the number of chiral invertible knots with 12 crossings.
Trivia: 1015 is an uninteresting number.
Data storica: October 11th is the day in 1865 that Paul Bogle led hundreds of black men and women in a march in Jamaica, starting the Morant Bay rebellion.