Fait général: 2680 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 2680 is the number of different arrangements of 11 non-attacking queens on an 11×11 chessboard.
Culture générale: 2680 is a boring number.
Date historique: May 3rd is the day in 2000 that the sport of geocaching begins, with the first cache placed and the coordinates from a GPS posted on Usenet.