Hecho general: 4200 is the number of standard size of a legion in the Roman Republic.
Hecho matemático: 4200 is divisible by its reverse.
Trivia: 4200 is the number of standard size of a legion in the Roman Republic.
Fecha histórica: July 1st is the day in 1987 that the American radio station WFAN in New York, New York is launched as the world's first all-sports radio station.