(now Sri Lanka, issues a proclamation declaring that the laws of the Netherlands for the conquered Dutch Ceylon shall be enforced until superseded by new laws. September 29 – the Second Roman Republic, a puppet state formed by the French Army after their dissolution of the Papal States and the occupation of Rome, is dissolved 19 months after its creation on February 15, 1798. October–December October 2 - Anglo-Russian invasion of Holland – Battle of Alkmaar: the Russo-British expedition force wins a small tactical victory over the Franco-Dutch forces. October 6 – Anglo-Russian invasion of Holland – Battle of Castricum: Franco-Dutch forces defeat the Russo-British expedition force. October 9 – (a famous treasure wreck) is sunk in the West Frisian Islands. October 12 – Jeanne Geneviève Labrosse becomes the first woman to jump from a balloon with a parachute, from an altitude of . October 16 – Action of 16 October 1799: A Spanish treasure convoy worth more than £54,000,000 is captured by the British Royal Navy off Vigo. October 18 – Anglo-Russian invasion of Holland: Anglo-Russian expedition forces surrender in North Holland. November 5 – HMS Sceptre is driven ashore and wrecked in a storm in Table Bay, South Africa, with the loss of 349 and 41 survivors. November 9 (Coup of 18 Brumaire) – Napoleon overthrows the French Directory in a coup d'état, which ends the French Revolution. November 10 (19 Brumaire) – A remnant of the Council of Ancients in France abolishes the Constitution of the Year III, and ordains the French Consulate with Napoleon as First Consul, with the Constitution of the Year VIII. November 30 – 1799–1800 Papal conclave opens in Venice at San Giorgio Monastery. December 3 – War of the Second Coalition: Battle of Wiesloch: Austrian Lieutenant Field Marshal Anton Sztáray defeats the French at Wiesloch. December 10 – France adopts the metre as its official unit of length. December 14 – George Washington, first President of the United States, dies at Mount Vernon, Virginia, aged 67. December 31 – The Dutch East India Company's charter is allowed to expire by the Batavian Republic. Date unknown The Place Royale in Paris is renamed Place des Vosges, when the Department of Vosges becomes the first to pay new Revolutionary taxes. Eli Whitney, holding a 1798 United States government contract for the manufacture of muskets, is introduced by Oliver Wolcott, Jr. to the concept of