==Events and Trends== Possible timing of King Arthur's victory over the Saxons 512 — Roman (Byzantine) Emperor Anastasius I ends a period of moderate eclectic policy, and starts strongly favoring his own monophysitist beliefs. 512 — Earliest known dated text in the Arabic alphabet, at Zebed in Syria 512 — The island nation of Usan-guk's conquered by the Korean Silla Dynasty general Lee Sabu. 516 — Sigismund becomes king of Burgundy. 519 — The Memoirs of Eminent… (More on 510s)