While the first three Crusades were launched in an effort to reclaim Jerusalem from Muslims, the Fourth Crusade, begun in 1202, pitted Christians against Christians: Roman Catholics against Orthodox.

This video traces how the Crusader States rose after the astonishing success of the First Crusade—culminating in the capture ...

This video explores how Venice, unlike other Italian cities, was shaped by its deep ties to Byzantium. From its early days as a refuge after the fall of Rome to its role in the Fourth Crusade and the ...