Fatto generale: 19880 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 19880 is an uninteresting number.
Trivia: 19880 is an uninteresting number.
Data storica: June 5th is the day in 1933 that the U.S. Congress abrogates the United States' use of the gold standard by enacting a joint resolution (48 Stat.