North America (Canada), explorer René-Robert Cavelier, Sieur de La Salle is released from the Society of Jesus (Jesuits). March – Louis XIV of France abolishes the livre parisis (Paris pound), in favor of the much more widely used livre tournois (Tours pound). He also designates Gabriel Nicolas de la Reynie as the first chief of "police" of Paris. April–June April 6 – The 1667 Dubrovnik earthquake in the Republic of Ragusa (part of modern-day Croatia) kills as many as 5,000 people, roughly one sixth of the population, and levels most of the buildings in Dubrovnik. April 27 – The blind, impoverished, 58-year-old John Milton seals a contract for publication of Paradise Lost with London printer Samuel Simmons, for an initial payment of £5. The first edition is published in October and sells out in eighteen months. May 1 – A Dutch flotilla under Admiral van Ghent enters the Firth of Forth. May 8 – Prince Prithviraj Singh, eldest son of the Maharaja Jaswant Singh of the Kingdom of Marwar (within India's Mughal Empire, part of the modern-day Rajasthan state) dies painfully at the age of 14, supposedly after putting on a khalat (a ceremonial robe) given to him by the Mughal Emperor Aurangzeb. According to the folklore of Marwar, the khalat was actually a garment infused with poison that penetrated the skin. May 22 – Fabio Chigi, Pope Alexander VII, dies at the age of 68 after a reign of 12 years. The election to find a successor opens on June 2. May 24 – After King Philip IV of Spain reneges on payment of a large dowry to King Louis XIV of France, promised to Louis as a gift for Louis' marriage to Philip's daughter Princess Maria Theresa, the War of Devolution begins between France and Spain. The French Army invades the Spanish Netherlands (modern-day Belgium), entering Flanders and Franche-Comté. By the time the war ends on May 2, 1668, large sections of the Spanish Netherlands are ceded to France. June 9–14 – The raid on the Medway in England is carried out when a fleet from the Dutch Republic under Admiral Michiel de Ruyter takes Sheerness fort, sails up the River Medway, raids Chatham Dockyard, and tows away the royal flagship The Royal Charles. June 15 – The first human blood transfusion is administered by Dr. Jean-Baptiste Denys. He transfuses the blood of a sheep to a 15-year-old