In Connection with the Death of Jean Calas

François-Marie Arouet (1694 – 1778), known by his  pseudonym Voltaire was a French Enlightenment writer, historian, and philosopher famous for his wit, his attacks on the established Catholic Church, and his advocacy of freedom of religion, freedom of expression, and separation of church and state.
"Zadig, or The Book of Fate" (1747) is a famous novel and work of philosophical fiction written by Enlightenment philosopher Voltaire. It tells the story of Zadig, a philosopher in ancient Babylonia. The author does not attempt any historical accuracy, and some of the problems Zadig faces are thinly disguised references to social and political problems of Voltaire's own day.