General fact: 140 is the character-entry limit for Twitter, a well-known characteristic of the service (based on the text messaging limit).
Mathematical fact: 140 is an abundant number and a harmonic divisor number.
Trivia: 140 is the character-entry limit for Twitter, a well-known characteristic of the service (based on the text messaging limit).
Historical date: May 19th is the day in 1962 that a birthday salute to U.S. President John F. Kennedy takes place at Madison Square Garden, New York City.