1800 events in history

Jan 1 The Dutch East India Company is dissolved
Mar 21 With the church leadership driven out of Rome during an armed conflict, Pius VII is crowned Pope in Venice with a temporary papal tiara made of papier-mâché
Apr 2 Ludwig van Beethoven leads the premiere of his First Symphony in Vienna
Apr 24 The United States Library of Congress is established when President John Adams signs legislation to appropriate $5,000 USD to purchase "such books as may be necessary for the use of Congress"
May 15 King George III of the United Kingdom survives an assassination attempt by James Hadfield, who is later acquitted by reason of insanity
Jun 7 David Thompson reaches the mouth of the Saskatchewan River in Manitoba
Jun 14 The French Army of First Consul Napoleon Bonaparte defeats the Austrians at the Battle of Marengo in Northern Italy and re-conquers Italy
Aug 1 The Acts of Union 1800 is passed in which merges the Kingdom of Great Britain and the Kingdom of Ireland into the United Kingdom of Great Britain and Ireland
Aug 30 Gabriel Prosser postpones a planned slave rebellion in Richmond, Virginia, but is arrested before he can make it happen
Sep 4 The French garrison in Valletta surrenders to British troops who had been called at the invitation of the Maltese. The islands of Malta and Gozo become the Malta Protectorate
Oct 1 Spain cedes Louisiana to France via the Treaty of San Ildefonso
Oct 7 French corsair Robert Surcouf, commander of the 18-gun ship La Confiance, captures the British 38-gun Kent inspiring the traditional French song Le Trente-et-un du mois d'août
Oct 17 Britain takes control of the Dutch colony of Curaçao
Nov 1 John Adams becomes the first President of the United States to live in the Executive Mansion (later renamed the White House)
Nov 17 The United States Congress holds its first session in Washington, D.C
Dec 3 War of the Second Coalition: Battle of Hohenlinden – French General Moreau decisively defeats the Archduke John of Austria near Munich. Coupled with First Consul Napoleon Bonaparte's earlier victory at Marengo, this will force the Austrians to sign an armistice and end the war