Fatto generale: 2190 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 2190 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 2190 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: December 29th is the day in 1949 that KC2XAK of Bridgeport, Connecticut becomes the first Ultra high frequency (UHF) television station to operate a daily schedule.