Mathematical fact: 4608 is the number of ways to place 2 non-attacking kings on a 10×10 chessboard.
Trivia: 4608 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Historical date: August 12th is the day in 1944 that Alençon is liberated by General Leclerc, the first city in France to be liberated from the Nazis by French forces.