Fait général: 5308 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 5308 is an uninteresting number.
Culture générale: 5308 is an unremarkable number.
Date historique: July 13th is the day in 1919 that the British airship R34 lands in Norfolk, England, completing the first airship return journey across the Atlantic in 182 hours of flight.