Fait mathématique: 9214 is the number of ways to stack 30 pennies in contiguous rows so that each penny lies on the table or on two pennies.
Culture générale: 9214 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Date historique: March 23rd is the day in 1931 that Bhagat Singh, Shivaram Rajguru and Sukhdev Thapar are hanged for murder during the Indian struggle for independence.