Fait mathématique: 4330 is the number of 4-regular multigraphs with 10 vertices.
Culture générale: 4330 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Date historique: November 8th is the day in 1973 that the right ear of John Paul Getty III is delivered to a newspaper together with a ransom note, convincing his father to pay 2.9 million USD.