Fait général: 1338 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 1338 is a number n for which f(n) is a repdigit.
Culture générale: 1338 is a boring number.
Date historique: August 30th is the day in 1974 that a Belgrade–Dortmund express train derails at the main train station in Zagreb killing 153 passengers.