Basil II, also known as Basil II the Bulgar-Slayer, was a Byzantine Emperor who ruled from 976 to 1025. He was known for his military campaigns and his efforts to expand and strengthen the Byzantine Empire. Basil II is remembered for his successful wars against the Bulgarians and his consolidation of Byzantine power in the Balkans. He was also known for his administrative reforms and his efforts to centralize the government. Basil II is considered one of the most successful Byzantine emperors and is remembered for his long and prosperous reign.