General fact: 55 is the number of Delegates who attended the United States Constitutional Convention in 1787.
Mathematical fact: 55 is the largest triangular number in the Fibonacci sequence.
Trivia: 55 is the common speed limit for rural secondary roads and many urban freeways in many states of the United States.
Historical date: February 24th is the day in 1942 that the Battle of Los Angeles, one of the largest documented UFO sightings in history; the event lasted into the early hours of February 26, 1942.