* 1723 – Mathurin Jacques Brisson, French naturalist ( d. 1806 )

* 1806 – Francis II, the last Holy Roman Emperor, abdicates ending the Holy Roman Empire.

* 1806 – Battle of Mišar during the Serbian Revolution begins.

* 1806 – Santiago de Liniers, 1st Count of Buenos Aires re-takes the city of Buenos Aires, Argentina after the first British invasion.

* 1724 – George Stubbs, English painter ( d. 1806 )

* Anton Alexander Graf von Auersperg ( 1806 – 1876 ) – Austrian poet who wrote under the pseudonym of Anastasius Grün.

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.

* 1806 – Michael Haydn, Austrian composer ( b. 1737 )

* 1727 – Michel Adanson, French botanist ( d. 1806 )

* William Bernard Ullathorne ( 1806 – 89 )

Following his conquest of most of Western Europe, the first Napoleon made his elder brother Joseph ( 1768 – 1844 ) king first of Naples ( 1806 – 1808 ) and then of Spain ( 1808 – 1813 ), his third brother Louis ( 1778 – 1846 ) king of Holland ( 1806 – 1810 ) ( subsequently forcing his abdication after his failure to subordinate Dutch interests to those of France ) and his youngest brother Jérôme Bonaparte ( 1784 – 1860 ) king of Westphalia, the short-lived realm created from some of the states of northwestern Germany ( 1807 – 1813 ).

In 1806, the French chemists Louis-Nicolas Vauquelin and Pierre Jean Robiquet isolated a compound in asparagus that was subsequently named asparagine, the first amino acid to be discovered.

In 1806, Montferrand joined the former Académie d ' architecture, joining class of Charles Percier and Pierre Fontaine.

* Notice historique sur M. Méchain, lue le 5 messidor XIII ( Baudouin, Paris, January 1806 ; this is the eulogy on the late Pierre Méchain, read at the Academy by Secretary Delambre on June 24, 1805 )

In 1806, working with asparagus, he and Pierre Jean Robiquet ( future discoverer of the famous red dye alizarin, then a young chemist and his assistant ) isolated the amino acid asparagine, the first one to be discovered.

# Bishop Pierre Denaut ( 1797 – 1806 )

Joachim Murat was born on 25 March 1767 in La Bastide-Fortunière, ( renamed Labastide-Murat after its renowned citizen ), in the Lot department of France, in the former province of Guyenne, to Pierre Murat-Jordy, ( d. 27 July 1799 ), an affluent farmer and an innkeeper, and his wife Jeanne Loubières ( La Bastide Fortunière, b. 1722 – La Bastide Fortunière, d. 11 March 1806 ), daughter of Pierre Loubières and of his wife Jeanne Viellescazes.

Designed by Charles Percier and Pierre François Léonard Fontaine, the arch was built between 1806 and 1808 by the Emperor Napoleon I, on the model of the Arch of Constantine ( 312 AD ) in Rome, as a gateway of the Tuileries Palace, the Imperial residence.

* Pierre André LatreilleGenera crustaceorum et insectorum, secundum ordinem naturalem ut familias disposita ( 4 vols., 1806 1807 1807 1809 )

Pierre Guillaume Frédéric le Play ( April 11, 1806, La Rivière-Saint-Sauveur near Honfleur France-April 5, 1882, Paris ), was a French engineer, sociologist, and economist.

Image: Alexander Hamilton portrait by John Trumbull 1806. jpg | Alexander Hamilton, Founding Father and the first United States Secretary of the Treasury, Columbia College

* 1806 – British forces take Buenos Aires during the first British invasions of the Río de la Plata.

* 1806 – The Vellore Mutiny is the first instance of a mutiny by Indian sepoys against the British East India Company.

John Graves Simcoe ( February 25, 1752 – October 26, 1806 ) was a British army officer and the first Lieutenant Governor of Upper Canada from 1791 – 1796.

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.

* 1806 – Construction is authorized of the Great National Pike, better known as the Cumberland Road, becoming the first United States federal highway.

In 1806, Webster published his first dictionary, A Compendious Dictionary of the English Language.

The first documented definition of the word " cocktail " was in response to a reader's letter asking to define the word in the May 6, 1806, issue of The Balance and Columbia Repository in Hudson, New York.

Until 1900 civil engineering projects were generally managed by creative architects, engineers, and master builders themselves, for example Vitruvius ( first century BC ), Christopher Wren ( 1632 – 1723 ), Thomas Telford ( 1757 – 1834 ) and Isambard Kingdom Brunel ( 1806 – 1859 ).

The poem, which is in couplet form, was first published in 1806 in Rhymes for the Nursery, a collection of poems by Taylor and her sister Ann.

The English lyrics were first published as a poem with the title " The Star " by sisters Ann and Jane Taylor ( 1783 – 1824 ) in Rhymes for the Nursery in London in 1806.

He was born in Chelsea, London, and made his first appearance on the stage at Bath in 1806, and his first London appearance in 1808.

* February 25 – John Graves Simcoe, first Lieutenant-Governor of Upper Canada ( d. 1806 )

* August 23 – Alexander Calder, first mayor of Beaumont, Texas ( b. 1806 )

Donizetti was not especially successful as a choirboy, but in 1806 he was one of the first pupils to be enrolled at the Lezioni Caritatevoli school, founded by Mayr, in Bergamo through a full scholarship.

In this form the opera was first performed on 29 March and 10 April 1806, with greater success.

In 1806 the first edition of The Antiquities of the Anglo-Saxon Church appeared, a development of his informal lectures.

In 1806 – 1807, while at Auteuil, he first appeared before the public as a poet, with two pieces, one entitled Urania, in the classical style, of which he became later the most conspicuous adversary, the other an elegy in blank verse, on the death of Count Carlo Imbonati, from whom, through his mother, he inherited considerable property, including the villa of Brusuglio, thenceforward his principal residence.

His grandparents were John Avery ( 1807 – 1865 ) a needle maker and needle manufacturer from Headless Cross and his wife Catherine ( née Johnson ) Avery ( 1806 – 1888 ); and William Dingley ( 1801-after 1851 ), a mercer and draper from Sherbourne, Dorset and his wife Grace ( née Pease ) Dingley ( 1801-after 1851 ).

Jean-Robert Argand introduced the term " module " ' unit of measure ' in French in 1806 specifically for the complex absolute value and it was borrowed into English in 1866 as the Latin equivalent " modulus ".

Edo period advertising flyer from 1806 for a traditional medicine called Kinseitan

In 1806 Prussia ceded Ansbach and the Principality of Ansbach to Bavaria in exchange for the Bavarian duchy of Berg.

After the general meeting in 1806, Thompson travelled to Rocky Mountain House and prepared for an expedition to follow the Columbia River to the Pacific.

The town was home to the civil engineer and calculating prodigy George Parker Bidder ( 1806 – 1878 ), who is notable for his work on railways over much of the world, as well as the docks of the East End in the Port of London.

In 1806 he was granted another £ 20, 000 for his continuing work in microbiology.

Succeeding rulers in Vietnam then continued to use this Emperor title until 1806 when this title was stopped being used for a century.

The disaster at Jena in 1806, in which Napoleon completely crushed the Prussian army, drove him to Königsberg for a time, but he returned to Berlin in 1807 and continued his literary activity.

This translatio imperii remained the basis for the Holy Roman Empire, at least in theory, until its demise in 1806.

In January 1806 Rapp traveled to Washington, D. C. to hear discussions in Congress regarding the Harmonists ’ petition for a grant that would allow them to purchase approximately acre of land in the Indiana Territory.

He died two years later, on the twentieth day of the ninth month of 1806 ( the lunar calendar date format for October 31 ), aged about fifty-three, in Edo.

; 2nd ed., 1806 ), which was translated into French and served as a model for Wilhelm Adolf Becker's Gallus and Charicles.

On the progress and changes of the spiritual life., ( London: Printed for J. Johnson, 1806 )

In 1806, for example, one member of the Commons said, " the Constitution abhors the idea of a prime minister ".

The Tories were in power for almost 50 years, except for a short Whig ministry from 1806 to 1807.

* Brooke, T. H., A History of the Island of St Helena from its Discovery by the Portuguese to the Year 1806 ”, Printed for Black, Parry and Kingsbury, London, 1808

Beethoven then focused this version for the performances of 1806, creating " Leonore No. 3 ".

As a reward for his services at Austerlitz ( 2 December 1805 ) he became the 1st Sovereign Prince of Ponte Corvo ( 5 June 1806 ), but during the campaign against Prussia, in the same year, was severely reproached by Napoleon for not participating with his army corps in the battles of Jena and Auerstädt, though close at hand.

Although Albert himself only reigned for a year, from then on, every emperor was a Habsburg, with only one exception, and Austria's rulers wee also the Holy Roman Emperors, till 1806.

For the election in 1806 he was moved to the seat of Haddington burghs and for the 1807 election successfully stood for Portarlington ( a seat he held until 1812 ).