General fact: 17976 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Mathematical fact: 17976 is an unremarkable number.
Trivia: 17976 is an uninteresting number.
Historical date: March 19th is the day in 1990 that the ethnic clashes of Târgu Mureş begin four days after the anniversary of the Revolutions of 1848 in the Habsburg areas.