French School, (18th century); French. Medium: engraving. Date: 18th Century. Francois Marie Arouet Voltaire (1694-1778) et l'Affaire Calas; affaire; French philosopher; Jean Calas (1698-1762) victim of the Christian religious intolerance; sentenced to death on the wheel; thanks to Voltaire, found not guilty in 1765; Provenance: Musee de la Ville de Paris, Musee Carnavalet, Paris, France / Giraudon. Photographic Rights The Bridgeman Art Library.