500s | dp1=510s | d=520s | dn1=530s | dn2=540s | dn3=550s }} Events Dionysius Exiguus proposes a calendar based on the birth of Jesus Christ. By Place Byzantine Empire Byzantine emperor Justin I rebuilds Anazarbus and renames it Justinopolis. Justinian I marries Theodora. Europe Bernicia's settled by the Angles. Africa Caleb of Abyssinia conquers Yemen. Asia The Daisan river, a tributary of the Euphrates, floods Edessa, and within a couple of hours fills the entire city, except for th… (More on 525)