What did emperor Alexius finally do?

Emperor Alexius I Comnenus, who ruled from 1081 to 1118, is best known for his efforts to stabilize and strengthen the Byzantine Empire during a time of internal strife and external threats. He initiated military reforms and sought help from the West, leading to the First Crusade. Ultimately, he managed to reclaim significant territories and restore Byzantine influence in the region. His reign marked a pivotal moment in Byzantine history, bridging the gap between the classical and medieval worlds.