Another part of Khulusi's book details some of the influential non-Muslim writers who showed a regard for Islamic teaching, culture and history during the Age of Enlightenment. Amongst these is Simon Ockley, a Cambridge scholar, who is noted for his book History of the Saracens (1712–18), a remarkable publication for its time, because of its generous tone towards Islam. Voltaire is also included for his fight for religious tolerance, outlined in the passionate Traité sur la Tolérance, (1763).