In the early middle ages the Christian presence in the Middle East took a series of blows from often superior Muslim forces, only for a fresh wave of Crusaders to regain territory. But the Fall of Acre in 1291 was the dramatic event that finally brought dreams of a Christian Holy Land crashing down. The city had first been captured by Crusaders under Richard the Lionheart in 1189-91. The aftermath was a horrific massacre of 3,000 Muslim prisoners...