Anastasius I was an Eastern Roman emperor who reigned from 491 to 518. Born in Dyrrachium, he was a career civil servant who ascended to the throne at age 61 after being selected by the widow of his predecessor, Zeno. His administration was noted for significant improvements to the imperial economy, bureaucracy, and fiscal stability. Although he was a Monophysite Christian, which created religious tension, his successful financial reforms provided a strong foundation for the future reign of Justinian I.