Fait mathématique: 7230 is the sum of consecutive squares in 2 ways.
Culture générale: 7230 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Date historique: October 17th is the day in 1945 that a massive number of people, headed by CGT and Evita, gather in the Plaza de Mayo in Argentina to demand Juan Peron's release.