General fact: 20090 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Mathematical fact: 20090 is an unremarkable number.
Trivia: 20090 is a boring number.
Historical date: January 1st is the day in 1902 that the first American college football bowl game, the Rose Bowl between Michigan and Stanford, is held in Pasadena, California.