Fait mathématique: 2045 is the number of unlabeled partially ordered sets of 7 elements.
Culture générale: 2045 is an uninteresting number.
Date historique: August 6th is the day in 2008 that a military junta led by Mohamed Ould Abdel Aziz stages a coup d'état in Mauritania, overthrowing president Sidi Ould Cheikh Abdallahi.