General fact: 2625 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Mathematical fact: 2625 is a centered octahedral number.
Trivia: 2625 is an uninteresting number.
Historical date: March 9th is the day in 1910 that the Westmoreland County Coal Strike, involving 15,000 coal miners represented by the United Mine Workers, begins.