Fait mathématique: 5164 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Culture générale: 5164 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Date historique: February 19th is the day in 197 that Emperor Septimius Severus defeats usurper Clodius Albinus in the Battle of Lugdunum, the bloodiest battle between Roman armies.