Fait général: 20198 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 20198 is a boring number.
Culture générale: 20198 is a boring number.
Date historique: April 19th is the day in 1809 that an Austrian corps is defeated by the forces of the Duchy of Warsaw in the Battle of Raszyn, part of the struggles of the Fifth Coalition.