In January 1759, printing presses in Geneva, Amsterdam, London and Paris secretly released a small, explosive book attributed to a mysterious German doctor named Ralph. The real author was Voltaire, one of the wealthiest and most famous intellectuals in Europe, and he flatly denied writing it. This episode traces how Candide came to be: the Leibnizian philosophy of the best of all possible worlds that dominated the 1750s, the Seven Years War, and the 1755 Lisbon earthquake that struck on All Saints Day, collapsing stone churches onto packed congregations before a tsunami and firestorms finished the destruction.

We follow Candide’s disillusionment tour from a sheltered Westphalian castle through conscription, shipwreck, the Inquisition and the golden utopia of El Dorado, and look at why Voltaire’s deadpan, breakneck treatment of mass suffering created an early template for dark comedy. The episode weighs the two scholarly readings of the famous ending, we must cultivate our garden, examines the bans in Geneva, Paris and the Vatican, the 1929 Boston customs seizure, and the book’s influence on Huxley, Orwell, Beckett and Bernstein’s Broadway musical.

• Why the Lisbon earthquake of 1755 shattered Voltaire’s belief in a benevolently ordered universe and Leibnizian optimism
• How Candide was actually written, dictated to secretary Jean-Louis Wagniere and revised chapter by chapter, and why a coordinated clandestine release across borders was a matter of survival
• Professor Pangloss and the absurd logic of noses made for spectacles and syphilis justified by chocolate
• El Dorado, hedonic adaptation and why Voltaire’s characters walk away from a perfect society
• The inside and outside interpretations of the ending, from isolationist surrender to Voltaire’s own practical work as a gardener and community builder at Ferney