Anastasios the Great was a Byzantine Emperor who ruled from 491 to 518 AD. He is known for his efforts to reform the empire's finances and improve its military strength. Anastasios also promoted religious tolerance, which helped to ease tensions between different Christian sects during his reign. He is often remembered for his construction projects, including the famous Anastasian Wall, which fortified the eastern borders of the empire. Anastasios the Great's reign marked a period of stability and prosperity for the Byzantine Empire, setting the stage for future developments in the region.