* Henry Austin ( architect ) ( 1804 – 1891 ), American architect

* 1857 – Eugène Sue, French novelist ( b. 1804 )

* 1866 – Gábor Klauzál, Hungarian politician ( b. 1804 )

Aga Khan I (; or, less commonly but more correctly (; ), was the title accorded to Hasan Ali Shah (; ; 1804 in Kohak, Iran – 1881 in Bombay, India ), the governor of Kirman, 46th Imam of the Nizari Ismaili Muslims, and prominent Muslim leader in Iran and later in the Indian Subcontinent.

Theseus Fighting the Centaur ( 1804 – 1819 ), Kunsthistorisches Museum, Vienna.

* 1804 – Francis II assumes the title of first Emperor of Austria.

At his memorial service on 22 June 1825 his own Requiem in C minor — composed in 1804 – was performed for the first time.

* 1804 – The western Georgian kingdom of Imereti accepts the suzerainty of the Russian Empire

* 1804 – Toussaint Louverture, Haitian Revolutionary ( b. 1743 )

* 1885 – Karl Theodor Ernst von Siebold, German physiologist ( b. 1804 )

" Migration, Radicalism, and State Security: Legislative Initiatives in the Canada and the United States c. 1794 – 1804 " in Studies in American Political Development, Volume 16, Issue 1, April 2002, 48 – 60

The term acquired a special significance in the philosophy of Immanuel Kant ( 1724 – 1804 ), who used it to describe the equally rational but contradictory results of applying to the universe of pure thought the categories or criteria of reason that are proper to the universe of sensible perception or experience ( phenomena ).

Benjamin Disraeli, 1st Earl of Beaconsfield, KG, PC, FRS, ( 21 December 1804 – 19 April 1881 ) was a British Prime Minister, parliamentarian, Conservative statesman and literary figure.

He was crowned Emperor of the French and ruled from 1804 – 1814, 1815.

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

#** Laetitia Christine Bonaparte ( 1804 – 1871 )

#* Napoleon Louis Bonaparte ( 1804 – 1831 )

* Napoleon Bonaparte ( First Consul ), Jean-Jacques Cambacérès ( Second Consul ), Charles-François Lebrun ( Third Consul ), Consuls ( 12 December 1799 – 18 May 1804 )

The current resistance to Russian rule has its roots in the late 18th century ( 1785 – 1791 ), a period when Russia expanded into territories formerly under the dominion of Turkey and Persia ( see also the Russo-Turkish Wars and Russo-Persian War ( 1804 – 1813 )), under Mansur Ushurma — a Chechen Naqshbandi ( Sufi ) Sheikh — with wavering support from other North Caucasian tribes.

In 1842 Charlotte and Emily travelled to Brussels to enrol in a boarding school run by Constantin Heger ( 1809 – 96 ) and his wife Claire Zoé Parent Heger ( 1804 – 87 ).

* Abraham Darby IV ( 1804 – 1878 ), High Sheriff of Buckinghamshire

In 1804 the Marlborough White Horse was cut by boys from Mr Greasley's Academy in the High Street.

In 1792 Sarah Otway, daughter of Sir Thomas Cave Bt ( who in 1790 had married Henry Otway, High Sheriff of Leicestershire in 1804 ), inherited the estate on the death of her nephew Sir Thomas Cave, 7th Baronet.

After attending the High School of Edinburgh and the University of Edinburgh, Combe entered a lawyer's office in 1804 ; and, in 1812, he began his own practice.

Charles P. Yorke came from a very distinguished political family ( his father had been Lord High Chancellor and grandfather had been Lord Chief Justice, Speaker of the House, and Lord High Chancellor ), and had a lengthy political career of his own, serving as Member of Parliament ( 1790 – 1810 ), Secretary of State for War ( 1801 – 1803 ), Home Secretary ( 1803 – 1804 ), and First Lord of the Admiralty ( 1810 – 1812 ).

The High Possil meteorite fell on the morning of Thursday, 5 April 1804, in a quarry near High Possil, on the northern outskirts of Glasgow.

The 1795 Wold Cottage fall in Yorkshire, 1803 L ' Aigle fall in France, and the 1804 High Possil fall could perhaps be said to mark the beginning of modern meteorite science.

The Dearne and Dove Canal, which was opened in stages from 1798 to 1804 to access the local collieries on the southern side of the Dearne Valley, passed through the town just to the north of the High Street on a large embankment and then turned north into the valley ; this wide section was known locally as the ' Bay of Biscay '.

The first individual alkaloid, morphine, was isolated in 1804 from opium poppies | poppy ( Papaver somniferum ).

The boomerang was first encountered by western people at Farm Cove ( Port Jackson ), Australia, in December 1804 where its use as a weapon was witnessed during a tribal skirmish:

* French group, under which they also included the countries that codified their law either in 19th or in the first half of the 20th century, using the Napoleonic code civil of year 1804 as a model ; this includes countries and jurisdictions such as Italy, Portugal, Spain, Louisiana, states of South America ( such as Brazil ), Quebec, Santa Lucia, Romania, the Ionian Islands, Egypt, and Lebanon

* 1804 – At Notre Dame Cathedral in Paris, Napoleon Bonaparte crowns himself Emperor of the French, the first French Emperor in a thousand years.

* 1804 – The first self-propelling steam locomotive makes its outing at the Pen-y-Darren Ironworks in Wales.

), the first Emperor of Austria ( Kaiser von Österreich ), ruling from 1804 to 1835, so later he was named the one and only Doppelkaiser ( double emperor ) in history.

The French National Convention, the first elected Assembly of the First Republic ( 1792 – 1804 ), on the 4th of February 1794, under the leadership of Maximilien Robespierre, abolished slavery by law in France and all its colonies.

Jean Jacques Dessalines became Haiti's first emperor in 1804.

On May 1, 1804, the first group of emigrants departed for the United States.

Rapp was able to secure a large tract of land in Pennsylvania and started his first commune, known as Harmonie or Harmony, in Butler County, Pennsylvania, where the Society existed from 1804 to 1815.

They first settled and built the town of Harmony, Pennsylvania, in 1804, and established the Harmony Society in 1805 as a religious commune.

The Lewis and Clark Expedition, also known as the Corps of Discovery Expedition ( 1804 – 1806 ), was the first transcontinental expedition to the Pacific coast undertaken by the United States.

In 1804 Haiti became the first independent black state in the New World.

The first steam locomotive was built by Richard Trevithick ; it first ran on 21 February 1804, although it was some years before steam locomotive design became economically practical.

This observation was first made by the French chemist Joseph Proust, based on several experiments conducted between 1798 and 1804.

John Dalton first expressed this observation in 1804.

" On the other hand Clement Greenberg called Immanuel Kant ( 1724 – 1804 ) " the first real Modernist ", though he also wrote, " What can be safely called Modernism emerged in the middle of the last century — and rather locally, in France, with Baudelaire in literature and Manet in painting, and perhaps with Flaubert, too, in prose fiction.

It was first isolated in 1804 by Friedrich Sertürner, first distributed by him in 1817, and first commercially sold by Merck in 1827, which at the time was a single small chemists ' shop.

The black-tailed prairie dog ( Cynomys ludovicianus ) was first described by Lewis and Clark in 1804 during the Lewis and Clark Expedition.