The Fifth Crusade. May 27, 1217.

The Fifth Crusade (1217-1221) consisted of a series of military actions initiated by Western Europe in order to recover Jerusalem and the rest of the Holy Land, by first trying to conquer Cairo under the control of the Ayyubids. Pope Innocent III and his successor, Honorius III, summoned the crusaders, led by the forces of Andrew II of Hungary and Duke Leopold VI of Austria. They tried to attack Jerusalem, but ultimately left the city in Muslim hands. In 1218 two armies, one led by Oliver of Cologne from Germany, and another by William I of Holland, composed of Flemish, Dutch and Frisian soldiers, joined the Crusade. They allied forces with the Seljuk Sultanate of Rum in order to attack Damietta (Egypt). The Seljuks launched an attack on the Ayyubids in Syria, trying to free the crusaders ...

The Battle of Manzikert. August 26,1071.

The Battle of Manzikert occurred on August 26, 1071 between the Byzantine Empire and Seljuk Turkish forces led by Alp Arslan, resulting in the defeat of the Byzantine Empire and the capture of Emperor Romanus IV Diogenes. During the 1060s the Seljuk sultan Alp Arslan allowed his Turkish allies to migrate towards Armenia and Asia Minor, where they sacked cities and plundered farmland. In 1064 they destroyed the Armenian capital at Ani. In 1068 Romanus IV led an expedition against them, but his slow-moving infantry could not catch the speedy Turkish cavalry, although he was able to capture the city of Hierapolis. In 1070 Romanus led a second expedition towards Manzikert, a Byzantine fortress that had been captured by the Seljuks, and offered a treaty with Arslan: ­ Romanus would give back Hi...

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