In 1805, Napoleon planned to invade Britain, but a renewed British alliance with Russia and Austria ( Third Coalition ), forced him to turn his attention towards the continent, while at the same time failure to lure the superior British fleet away from the English Channel, ending in a decisive French defeat at the Battle of Trafalgar on 21 October put an end to hopes of an invasion of Britain.

However, a Franco-Spanish fleet was defeated at Trafalgar ( 21 October 1805 ) and all plans to invade Britain were then made impossible.

In 1805, Napoleon planned to invade Britain, but a renewed British alliance with Russia and Austria ( Third Coalition ), forced him to turn his attention towards the continent, while at the same time failure to lure the superior British fleet away from the English Channel, ending in a decisive French defeat at the Battle of Trafalgar on 21 October put an end to hopes of an invasion of Britain.

* August 21 – Jean-Baptiste Greuze, French painter ( d. 1805 )

The Battle of Trafalgar ( 21 October 1805 ) was a naval engagement fought by the British Royal Navy against the combined fleets of the French Navy and Spanish Navy, during the War of the Third Coalition ( August – December 1805 ) of the Napoleonic Wars ( 1803 – 1815 ).

The first published indications of this idea are to be found at the end of his paper on the absorption of gases already mentioned, which was read on 21 October 1803, though not published until 1805.

Thomas Graham FRS ( 21 December 1805 – 16 September 1869 ) was a nineteenth-century Scottish chemist who is best-remembered today for his pioneering work in dialysis and the diffusion of gases.

August Bournonville ( 21 August 1805 – 30 November 1879 ) was a Danish ballet master and choreographer.

Born in Copenhagen August 21, 1805, August Bournonville was the son of the French ballet master, Antoine Bournonville, who had settled in Denmark, and Lovisa Sundberg, a Swede.

Contract of marriage for October 21, 1805

Shortly afterwards, Crockett became engaged to Margaret Elder and, although the marriage never took place, the contract of marriage ( dated October 21, 1805 ) has been preserved by the Dandridge, Tennessee, courthouse.

Hey and some investing partners acquired of land for $ 21, 757 in 1805.

He also did notable work on the Supreme Court interior ( 1806 – 07 ) and his masterpiece, the Basilica of the Assumption of the Virgin Mary, Baltimore ( 1805 – 21 ).

James Martineau ( 21 April 1805 – 11 January 1900 ) was an English religious philosopher influential in the history of Unitarianism.

On 21 October 1805, Nelson's fleet defeated a joint Franco-Spanish naval force at the Battle of Trafalgar.

* Battle of Trafalgar – 21 October 1805

* Lady Charlotte Seymour ( 21 September 1730 – 15 February 1805 ), married Heneage Finch, 3rd Earl of Aylesford and had issue.

Country homes for the landed gentry included: new rooms and remodelling of Wimpole Hall and garden buildings, ( 1790 – 94 ) for his friend Philip Yorke that he met on his Grand Tour ; remodelling of Baronscourt, County Tyrone, Ireland ( 1791 ); Tyringham Hall ( 1792 – 1820 ); the remodelling of Aynhoe Park ( 1798 ); In 1804 Soane remodelled Ramsey Abbey none of his work there now survives ; the remodelling of the south front of Port Eliot and new interiors ( 1804 – 06 ); the Gothic Library at Stowe House ( 1805 – 06 ); Moggerhanger House ( 1791 – 1809 ); for Marden Hill, Hertfordshire, Soane designed a new porch and entrance hall ( 1818 ); remodelling of Wotton House after damage by fire ( 1820 ); a terrace of six houses above shops in Regent Street London, ( 1820 – 21 ) demolished ; Pell Wall Hall ( 1822 ).

On the morning of 21 October 1805, Hardy was one of the witnesses to Nelson's will.

In 1798, at the age of 21, he settled in Manchester and established a business in textile trading and finance, later moving to London, England and making a fortune in trading bills of exchange through a banking enterprise begun in 1805.

Henry Sampson Woodfall ( 21 June 1739 – 12 December 1805 ) was an English printer and journalist.

Lord Nelson was killed at the Battle of Trafalgar on 21 October 1805.

He married in New York City, New York on May 8, 1867 Isabel Clark, born in New York, c. 1846, daughter of William Mather Clark, a banker ( Litchfield, Connecticut, May 26, 1805 – Berkley House, 5th Avenue, New York City, New York, November 21, 1878 ) and wife Isabella Staples ( New York, c. 1805 – living 1870 ).

In October 1795, President George Washington appointed him as Director of the United States Mint, a position he held through succeeding administrations until he retired in 1805.

* 1805 28 October – HMS Victory was towed into Gibraltar bringing Nelson's body aboard.

The French army achieved a resounding victory at Ulm ( 16 – 19 October 1805 ), where an entire Austrian army was captured.

In October 1805 John Adams wrote to his friend Benjamin Waterhouse, an American physician and scientist:

Due to religious persecution by the Lutheran Church and the government in Württemberg, the society moved to the United States on October 7, 1803, settled in Pennsylvania, and on February 15, 1805, they, together with about 400 followers, formally organized the Harmony Society, placing all their goods in common.

* October 13 – John Lloyd Stephens, American traveler, diplomat and Mayanist archaeologist ( b. 1805 )

* October 31 – Christopher Anstey, English writer ( d. 1805 )

This was followed by the Lewis and Clark Expedition in October, 1805.

The first western explorers to visit the river were Lewis and Clark on or about October 17, 1805.

With the assistance of the Nez Perce, the expedition recuperated and constructed burned-out canoes at Canoe Camp in October 1805 and then paddled down the Clearwater, Snake, and Columbia rivers, meeting the Pacific Ocean a month later at present-day Astoria, Oregon.

After a period of leave in England over winter 1805 – 6 and promotion to colonel on 29 October 1805, Brock returned to Canada to find himself temporarily in command of the entire British army there.

For each variety, there was a new enabling statute or executive decree: 28 March 1803 ; 7 April 1803 ; 26 June 1804 ; 8 September 1805 ; 11 February 1807 ; 5 August 1807 ; and 22 October 1808.

Nearby is the historical " Canoe Camp ," where the Lewis and Clark expedition built five new dugout canoes and embarked on October 7, 1805, downstream to the Pacific Ocean.

Lewis and Clark camped near Mill Creek on October 25 – 27, 1805, and recorded the Native American name for the creek as Quenett.

On October 16, 1805, the Lewis and Clark Expedition camped in the Pasco area, at a site now commemorated by Sacagawea State Park.

Born in Stockholm, Alfred Nobel was the fourth son of Immanuel Nobel ( 1801 – 1872 ), an inventor and engineer, and Andriette Ahlsell Nobel ( 1805 – 1889 ).

* 1805 – Joseph Locke, English railway and civil engineer ( d. 1860 )

* 1872 – Frederick Maurice, English theologian ( b. 1805 )

* 1805 – Christopher Anstey, English writer ( b. 1724 )

* 1877 – William B. Ogden, American politician, 1st Mayor of Chicago ( b. 1805 )

* 1805 – First Barbary War: United States Marines captured Derne under the command of First Lieutenant Presley O ' Bannon.

* 1725 – Jean-Baptiste Greuze, French painter ( d. 1805 )

* 1805 – Anton von Schmerling, Austrian statesman ( d. 1893 )

* 1805 – Hans Christian Andersen, Danish writer ( d. 1875 )

* 1805 – Frederick Denison Maurice, English theologian ( d. 1872 )

The Lewis and Clark Expedition spent the winter of 1805 – 1806 at Fort Clatsop, a small log structure south and west of modern day Astoria.

* 1756 – Dheeran Chinnamalai, Indian Freedom Fighter, Tamil Revolutionist ( d. 1805 )

* 1805 – Ferenc Toldy, German-Hungarian critic ( d. 1875 )

* 1805 – First Barbary War: United States Marines and Berbers attack the Tripolitan city of Derna ( The " shores of Tripoli " part of the Marines ' hymn ).

* 1755 – Nicolas-Jacques Conté, French painter and inventor ( d. 1805 )

* 1805 – William Rowan Hamilton, Irish mathematician ( d. 1865 )

* 1805 – Lewis and Clark Expedition: The Corps of Discovery breaks camp among the Mandan tribe and resumes its journey West along the Missouri River.

* 1871 – Alexander Loyd, American politician, Mayor of Chicago ( b. 1805 )

* Also the Bavarian Major General and War Minister Moritz Ritter von Spies ( 1805 – 1862 ) was born in Ansbach.

* Prosper Guéranger ( 1805 – 1875 )

* Napoleon I ( 1804 – 1814, 1815 ), also King of Italy ( 1805 – 1814 ) and Emperor in Elba ( 1814 – 1815 )

#* Jérôme Napoleon Bonaparte ( 1805 – 1870 ), married Susan May Williams