The siege of of Acre took place on 18th May 1291 A.D. also known as the fall of Acre. which resulted in the loss of the land and Crusader controlled city Acre to the Muslims. This was considered one of the most important battles of the period. Although for the loss of land, which was there last major strong hold, there was no further crusades in the Levant after. There was still continued crusades for several more centuries but none was of such magnitude in battle and in loss.