WORLD HISTORY

Detailed explanation-1: -Despite the best efforts of the Crusaders, the Byzantine Empire mostly did not participate directly in the expeditions but instead provided crucial logistical support.

Detailed explanation-2: -The Crusades also negatively impacted the Muslim-Christian relations-widened the gap, and led to the mutual hatred and hostility. In addition, Christianity also got fractured into two factions: Greek and Latin.

Detailed explanation-3: -However, a sequence of economic and political events culminated in the Crusader army’s 1202 siege of Zara and the 1204 sack of Constantinople, the capital of the Greek Christian-controlled Byzantine Empire, rather than Egypt as originally planned. This led to the partitioning of the Byzantine Empire by the Crusaders.

Detailed explanation-4: -The significance of Seljuk Turk’s invasion of the Byzantine empire is that they prevented pilgrimages to Holy Land and if the Byzantine empire would fall western Europe would be in danger from non-Christian invaders.