Thomas Jefferson.

Events of 1805

January–March

• January 11 – Michigan Territory is created.

• February 15 – The Harmony Society is officially formed.

• March 1 – Justice Samuel Chase is acquitted of impeachment charges by the U.S. Senate.

• March 4 – Thomas Jefferson is sworn in for a second term as President of the United States.

• March 5 – The New Brunswick Legislature passes a bill to advance literacy in the province, which eventually leads to the creation of public education in what is now Canada.

April – July

• April 27 – United States Marines and Berbers attack the Tripolitan city of Derna (The "Shores of Tripoli").

• April 29 – Rutger Jan Schimmelpenninck is appointed as Grand Pensionary of the Batavian Republic by Napoleon.

• June 1 – Luigi Boccherini is buried in Italy after being found dead on May 28.

• June – War ends between Tripoli and the United States of America.

• June 4 – The first Trooping the Colour ceremony is held at the Horse Guards Parade in London.

• June 11 – Detroit burns to the ground; most of the city is destroyed.

• June 13 – Lewis and Clark Expedition: Scouting ahead of the expedition, Meriwether Lewis and four companions sight the Great Falls of the Missouri River, confirming they are heading in the right direction.

June 13: Lewis & Clark.

• July 9 – Muhammad Ali Pasha founds his dynasty in Egypt.

October–December

• October 17 – Napoleonic Wars – Battle of Ulm: Austrian General Mack von Leiberich is forced to surrender his entire army to Napoleon after being surrounded.

• October 21 – Napoleonic Wars – Battle of Trafalgar: British naval fleet led by Admiral Horatio Nelson defeats a combined French and Spanish fleet off the coast of Spain; however, Admiral Nelson is fatally shot.

October 21 – Battle of Trafalgar.

December 2: Napoleon wins Battle of Austerlitz.

• November 7 – The Lewis and Clark Expedition arrives at the Pacific Ocean.

• November 11 – Napoleonic Wars – Battle of Dürenstein: 8,000 French troops attempt to slow the retreat of a vastly superior Russian and Austrian force.

• November 16 – Napoleonic Wars – Battle of Schöngrabern: – Russian forces under Pyotr Bagration delay the pursuit by French troops under Murat.

• November 26 – The Pontcysyllte Aqueduct is opened.

• December 2 – Napoleonic Wars – Battle of Austerlitz: French troops under Napoleon decisively defeat a joint Russo-Austrian force.

• December 26 – The Peace of Pressburg is signed between France and Austria.

Undated

• James Squire becomes the first person in Australia to cultivate Hops.

• The Horse Patrol, a mounted law enforcement force, is founded in London, England.

• King Anouvong becomes ruler of Vientiane.

• Napoleon annuls the 10-day week of the French Revolutionary Calendar; he also orders his soldiers to be vaccinated.

• Sweden declares war on France.

• Simón Bolívar dedicates himself to liberating Venezuela from Spanish rule.

Ongoing events

• Napoleonic Wars (1799–1815)–Third Coalition

Births

January–June

• January 8 – Orson Hyde, American religious leader (d. 1878)

• January 27 – Samuel Palmer, English artist (d. 1881)

• March 3 – Jonas Furrer, first President of the Swiss Confederation (d. 1861)

• March 23 – Sears Cook Walker, American mathematician and astronomer (d. 1853)

• April 2 – Hans Christian Andersen, Danish writer (d. 1875)

• June 22 – Giuseppe Mazzini Italian patriot, statesman, and writer (d. 1872)

July–December

• July 29 – Alexis de Tocqueville, French historian (d. 1859)

• August 4 – William Rowan Hamilton, Irish mathematician (d. 1865)

• August 29 – Frederick Maurice, English theologian (d. 1872)

• November 14 – Fanny Mendelssohn, German composer and pianist (d. 1847)

• November 28 – John Lloyd Stephens, American traveler, diplomat and Mayanist archaeologist (d. 1852)

• December 22 – John Obadiah Westwood, British entomologist (d. 1893)

• December 23 – Joseph Smith, Jr., American prophet, founder of The Church of Jesus Christ of Latter-day Saints (Mormonism) (d. 1844)

Deaths

January–June

• January 9 – Noble Wimberly Jones, American Continental Congressman (b. 1723)

• January 18 – John Moore, Archbishop of Canterbury (b. 1730)

• January 23 – Claude Chappe, French telecommunication pioneer (b. 1763)

• February 25 – Thomas Pownall, British colonial statesman (b. 1722)

• March 4 – Jean-Baptiste Greuze, French painter (b. 1725)

• May 7 – William Petty, 2nd Earl of Shelburne, Prime Minister of the United Kingdom (b. 1737)

• May 9 – Friedrich Schiller, German playwright (b. 1759)

• May 25 – William Paley, English philosopher (b. 1743)

• May 28 – Luigi Boccherini, Italian composer (b. 1743)

• June 19 – Louis-Jean-François Lagrenée, French painter (b. 1724)

July–December

• August 3 – Christopher Anstey, English writer (b. 1724)

• August 28 – Alexander Carlyle, Scottish church leader (b. 1722)

• October 5 – Charles Cornwallis, 1st Marquess Cornwallis, British general (b. 1738)

• October 21 – Horatio Nelson, British admiral (mortally wounded in battle) (b. 1758)

• December 23 – Pehr Osbeck, Swedish explorer and naturalist (b. 1723)