Events in History Feb 26 Valentinian I is proclaimed Roman Emperor Feb 28 Valentinian I becomes Roman Emperor Mar 28 Roman Emperor Valentinian I appoints his brother Flavius Valens co-emperor Deaths in History Feb 17 Jovian (Flavius Jovianus), Christian emperor of Rome (363-64), dies at about 32 Share On Facebook Share On Twitter 363 AD On This Day in History 365 AD