sentences:  His major work, "Dibre ha-Yamim le-Malke Zarfat we-'Otoman" (Chronicles of the Kings of France and Turkey), is in the nature of a history of the world, in the form of annals, in which he represents the sequence of events as a conflict between Asia and Europe, between Islam and Christianity, the protagonist for Islam being the mighty Turkish empire, and for Christianity, France.With these two great groups he connects European history, beginning with the downfall of the Roman empire.In this he also includes narratives of persecutions of Jews during the first and second crusades, copied from eye-witness reports available to him in manuscript.