1801

Millennium:	2nd millennium
Centuries:	18th century – 19th century – 20th century
Decades:	1770s  1780s  1790s  – 1800s –   1810s   1820s   1830s
Years:	1798 1799 1800 – 1801 – 1802 1803 1804

Year 1801 (MDCCCI) was a common year starting on Thursday (see link for calendar) of the Gregorian calendar (or a common year starting on Tuesday of the 12-day-slower Julian calendar).

Events of 1801

January - March

• January 1 - Legislative union of Great Britain and Ireland completed under the Act of Union 1800, bringing about the United Kingdom of Great Britain and Ireland.
• January 1 - Giuseppe Piazzi discovers the dwarf planet Ceres.
• January 21 - John Marshall is appointed Chief Justice of the United States.
• February 4 - William Pitt the Younger resigns as Prime Minister of the United Kingdom.
• February 16 - The Treaty of Lunéville ends the war ( Second Coalition) between France and Austria.
• February 19 - 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 U.S. Congress.
• March 6 - 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 23 - The Russian Tsar Paul I is murdered. He is succeeded by his son Alexander I of Russia.

April - June

• April 2 - First Battle of Copenhagen - The British fleet under Admiral Sir Hyde Parker, along with Admiral Horatio Nelson, attack Copenhagen. Armed Neutrality of the North dissolved.
• May 10 - The pascha of Tripoli declares war on United States by having the flagpole on the consulate chopped down.
• June 7 - Portugal and Spain sign the Treaty of Badajoz. Portugal loses the city of Olivenza
• June 27 - Cairo falls to British troops.

July - September

• July 6 - Battle of Algeciras: The French fleet beats the British fleet.
• July 18 - Napoleon signs the Concordat of 1801 with the Pope.

October - December

• October 17 - Coup d'état in the Netherlands ( Batavian Republic).
• November 16 - First edition of New York Evening Post.

Undated

• The Indian March of Paul (January-March)
• Aachen is officially annexed by France.
• The first census is held in Great Britain. London is revealed to have 860,035 residents.
• First census in France.
• Joseph-Marie Jacquard developed a loom where the pattern being woven was controlled by punch cards.
• Ultraviolet radiation is discovered by Johann Wilhelm Ritter.

Ongoing events

• French Revolutionary Wars (1792-1802)- Second Coalition/Egyptian Campaign
• Napoleonic Wars (1799-1815).

Births

1801 in other calendars

Gregorian calendar	1801 MDCCCI
Ab urbe condita	2554
Armenian calendar	1250 ԹՎ ՌՄԾ
Assyrian calendar	6551
Bahá'í calendar	-43–-42
Bengali calendar	1208
Berber calendar	2751
British Regnal year	41 Geo. 3 – 42 Geo. 3
Buddhist calendar	2345
Burmese calendar	1163
Byzantine calendar	7309–7310
Chinese calendar	庚申年十一月十七日 (4437/4497-11-17) — to — 辛酉年十一月廿六日 (4438/4498-11-26)
Coptic calendar	1517–1518
Ethiopian calendar	1793–1794
Hebrew calendar	5561–5562
Hindu calendars
- Vikram Samvat	1857–1858
- Shaka Samvat	1723–1724
- Kali Yuga	4902–4903
Holocene calendar	11801
Igbo calendar
- Ǹrí Ìgbò	801–802
Iranian calendar	1179–1180
Islamic calendar	1215–1216
Japanese calendar	Kansei 13 (寛政13年)
Juche calendar	N/A (before 1912)
Julian calendar	Gregorian minus 12 days
Korean calendar	4134
Minguo calendar	111 before ROC 民前111年
Thai solar calendar	2344

January - June

• January 3 - Gijsbert Haan, Dutch-American religious leader (d. 1874)
• February 1 - Thomas Cole, American artist (d. 1848)
• towards February 13 - János Kardos Hungarian Slovenes evangelic priest, teacher and writer (d. 1875)
• February 21 - John Henry Newman, English Roman Catholic Cardinal (d. 1890)
• May 11 - Henri Labrouste, French architect (d. 1875)
• June 1 - Brigham Young, American religious leader and colonizer (d. 1877)
• June 4 - James Pennethorne, English architect (d. 1871)
• June 14 - Heber C. Kimball, American religious leader (d. 1868)
• June 30 - Frederic Bastiat, French philosopher (d. 1850)

July - December

• July 5 - David Farragut, American naval commander (d.1870)
• July 29 - George Bradshaw, English publisher (d. 1853)
• October 12 - Friedrich Frey-Herosé, member of the Swiss Federal Council (d. 1873)
• November 3 - Karl Baedeker, German author and publisher (d. 1859)
• November 3 - Vincenzo Bellini, Italian composer (d. 1835)
• November 10 - Vladimir Dal, Russian lexicographer (d. 1872)
• December 11 - Christian Dietrich Grabbe, German writer (d. 1836)
• date unknown
  • Dai Xi, Chinese painter (d. 1860)
  • Franciszek Ksawery Godebski, Polish writer

Deaths

January - June

• February 7 - Daniel Chodowiecki, Polish painter (b. 1726)
• March 21 - Andrea Luchesi, Italian composer (b. 1741)
• March 23 - Tsar Paul of Russia (b. 1754)
• March 25 - Novalis, German poet (b. 1772)
• March 28 - Ralph Abercromby, British general (b. 1734)
• April 2 - Thomas Dadford Junior, British engineer
• April 7 - Noël François de Wailly, French lexicographer (b. 1724)
• May 17 - William Heberden, English physician (b. 1710)
• June 4 - Frederick Muhlenberg, first Speaker of the U.S. House of Representatives (b. 1750)

July - December

• September 19 - Johann Gottfried Koehler, German astronomer (b. 1745)
• October 3 - Philippe Henri, marquis de Ségur, Marshal of France (b. 1724)
• November 4 - William Shippen, American physician and Continental Congressman (b. 1712)
• 5 November - Motoori Norinaga, Japanese philologist and scholar (b. 1730)
• November 24 - Franz Moritz Graf von Lacy, Austrian field marshal (b. 1725)
• June 14 - Benedict Arnold,American Revolution traitor (b. 1741)