Fait mathématique: 1239 is a value of n for which n^{8}, n^{9}, n^{10}, and n^{11} have the same digit sum.
Culture générale: 1239 is a boring number.
Date historique: May 23rd is the day in 1813 that South American independence leader Simón Bolívar enters Mérida, leading the invasion of Venezuela, and is proclaimed El Libertador ("The Liberator").