Unit 1. The beginning of Middle Ages and Islam By Inaki00k18 Period: 200 to 599 Germanic Invasions 476 The fall of Roman Empire The Ostrogoth king Theodoric conquered and defeated the last Roman emperor, Romulos Augustulos. Period: 500 to 999 Other invasions 507 Battle of Vouillé 1054 The Great Schism Division of the Church (Catholics & Orthodox). 1453 Conquest of Constantinople