1698 – Born on March 19th in Lacabarède, France. Huguenot cloth merchant whose execution caused the philosopher Voltaire to lead a campaign for religious toleration and reform of the French criminal code.
1761 – Calas was arrested and charged with having murdered his son to prevent or punish his conversion to Catholicism.
1762 – Found guilty by the local magistrates, he was condemned to death by the Parlement (appellate court) of Toulouse.
– Died on March 10th in Toulouse. He was publicly broken on the wheel, strangled, and then burned to ashes.
1765 – Influential friends of the family in Geneva interested Voltaire in the case, and through a vigorous press campaign the philosopher convinced large segments of European public opinion that Calas’s judges had allowed their anti-Huguenot prejudices to influence their verdict.
– The panel reversed Calas’ conviction on March 9th, and the government paid the family an indemnity.