Fait général: 21083 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 21083 is an uninteresting number.
Culture générale: 21083 is an unremarkable number.
Date historique: September 20th is the day in 1962 that James Meredith, an African-American, is temporarily barred from entering the University of Mississippi.