Fait mathématique: 4990 is the maximum number of pieces a torus can be cut into with 30 cuts.
Culture générale: 4990 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Date historique: August 29th is the day in 1941 that Tallinn, the Capital of Estonia is occupied by Nazi Germany following an occupation by the Soviet Union.