Fait mathématique: 8688 is the number of possible configurations of pegs (up to symmetry) after 26 jumps in solitaire.
Culture générale: 8688 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Date historique: October 14th is the day in 1910 that the English aviator Claude Grahame-White lands his Farman Aircraft biplane on Executive Avenue near the White House in Washington, D.C..