The Crusades were a series of wars between 1095-1272 where European Christians fought Muslims for control of the Holy Land. The Byzantine emperor asked the Pope for help against the expanding Seljuk Turks who had taken most of the Holy Land. In 1095, Pope Urban II launched the First Crusade by calling Christians to retake Jerusalem. The Crusaders succeeded in capturing Jerusalem in 1099 after taking Nicaea, winning at Dorylaeum, and seizing Edessa and Antioch. However, the last Christian city, Acre, fell in 1291, ending the Crusades.