Events

• January 1 - Legislative union of Great Britain and Ireland completed under the 1801 Act of Union
• January 1 - The first (and largest) asteroid Ceres is discovered by Giuseppe Piazzi
• January 20 - John Marshall is appointed Chief Justice of the United States.
• February 3 - William Pitt the Younger resigns as Prime Minister of the United Kingdom
• February 9 - The Treaty of Lunéville ends the war (Second Coalition[?]) between France and Austria
• February 17 - An electoral tie between Thomas Jefferson and Aaron Burr is resolved when Jefferson is elected President of the United States and Burr Vice President by the United States House of Representatives.
• February 27 - Washington, DC is placed under the jurisdiction of the United States Congress.
• March 4 - Thomas Jefferson succeeds John Adams as the President of the United States of America
• March 21 - Second Battle of Abukir: a British army under Ralph Abercromby defeats the French troops
• March 24 - The Russian tsar Paul I is murdered
• April 2 - First Battle of Copenhagen. Armed Neutrality of the North[?] dissolved.
• May - The pascha of Tripoli declares war on United States by having the flagpole on the consulate chopped down.
• July 6 - Battle of Algeciras[?]: The French fleet beats the British fleet.
• July 18 - Napoleon signs Concordat with pope
• August 1 / 2 - A French fleet is defeated by British ships under Horatio Nelson in the Battle of the Nile
• Joseph-Marie Jacquard developed a loom where the pattern being woven was controlled by punch cards.
• The ultraviolet radiation is discovered by Johann Wilhelm Ritter[?]

Births

• May 11 - Henri Labrouste, architect (+ 1875)
• November 1 - Vincenzo Bellini, Italian composer
• Frederic Bastiat, French philosopher

Deaths

• February 7 - Daniel Chodowiecki, German painter
• March 23 - Tsar Paul of Russia
• March 25 - Novalis, German poet
• March 28 - Ralph Abercromby, British general
• June 4 - Frederick Muhlenberg, first speaker of the United States House of Representatives