Fait général: 19890 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 19890 is an uninteresting number.
Culture générale: 19890 is an unremarkable number.
Date historique: June 15th is the day in 1919 that John Alcock and Arthur Brown complete the first nonstop transatlantic flight when they reach Clifden, County Galway, Ireland.