Fatto generale: 1920 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 1920 is the smallest number that contains more different digits than its cube.
Trivia: 1920 is an unremarkable number.
Data storica: April 3rd is the day in 1936 that Bruno Richard Hauptmann is executed for the kidnapping and death of Charles Augustus Lindbergh, Jr., the baby son of pilot Charles Lindbergh.