sentences:  The editors of this collection have chosen to consider 1291 as the end date of the Crusades, since the fall of Saint-Jean-d'Acre completed the ruin of Christian institutions in Palestine.So historians posterior to the middle of the fourteenth century are not included.Were also excluded works more literary than historical, like novels on the Crusades, and also the narration related to the conquest of Constantinople by the French and the Venetians, because they did take almost no part in the events of Palestine.