Fait général: 8990 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 8990 is an uninteresting number.
Culture générale: 8990 is an unremarkable number.
Date historique: August 11th is the day in 1920 that the Latvian–Soviet Peace Treaty, which relinquished Russia's authority and pretenses to Latvia, is signed, ending the Latvian War of Independence.