Fait général: 1544 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 1544 is the number of connected 4-regular graphs with 12 vertices.
Culture générale: 1544 is an uninteresting number.
Date historique: March 23rd is the day in 1982 that Guatemala's government, headed by Fernando Romeo Lucas García is overthrown in a military coup by right-wing General Efraín Ríos Montt.