Fait mathématique: 7480 is a value of n for which _{2n}C_{n} is divisible by n^{2}.
Culture générale: 7480 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Date historique: June 23rd is the day in 1931 that Wiley Post and Harold Gatty take off from Roosevelt Field, Long Island in an attempt to circumnavigate the world in a single-engine plane.