検索キーワード： 制作 "Macat International Limited." フランス

In the 1960s, British historian Jonathan Riley-Smith first began studying the knightly orders of the Middle Ages that formed after the First Crusade. By the late 1970s, he had begun writing books from a "revisionist" point of view, challenging the common belief that the Crusades were motivated by fanaticism, and were designed to plunder the Holy Lands. To an extent, Riley-Smith's 1986 book The First Crusade and the Idea of Crusading overturned this previously held view.

Based around a Marxist understanding of class struggle, Lefebvre sees the revolution not just as a political crisis, but also as an assault on inherited privilege and the social hierarchy. Ultimately, it succeeded because people at every level of society - from nobles and the elite bourgeois to peasants and the urban masses - found the will to defy the crown. Lefebvre's book was later interpreted by some as simplistic and overly partisan, designed as a rallying call to his fellow countrymen.