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 (6th century). Europe Bernicia is 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 the highest parts. Eventually the pent-up water… (More on 525)