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 ".

The term " absolute value " has been used in this sense since at least 1806 in French and 1857 in English.

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

The monument was designed by Jean Chalgrin in 1806, and its iconographic program pitted heroically nude French youths against bearded Germanic warriors in chain mail.

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

Clausewitz served in the Rhine Campaigns ( 1793 – 1794 ) including the Siege of Mainz, when the Prussian army invaded France during the French Revolution, and served in the Napoleonic Wars from 1806 to 1815.

* 1806 – Battles of Pultusk and Golymin: Russian forces hold French forces under Napoleon.

In the Capitulation of Erfurt the city, its 12, 000 defenders, and the Petersberg fortress were handed over to the French on 16 October 1806.

The city became part of the First French Empire in 1806 as Principality of Erfurt, and was returned to Prussia in 1815 after the Napoleonic Wars.

* 1806 – Battle of San Domingo: British naval victory against the French in the Caribbean.

The Confederation of the Rhine, a confederation of client states of the First French Empire, existed from 1806 to 1813.

A pro-French Batavian Republic was established ( 1795 – 1806 ), and with the consolidation of French power under Napoleon gradually turned into a French satellite state, culminating in the Kingdom of Holland ( 1806 – 1810 ) and later simply an imperial province.

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

* 1806 – Catherine Labouré, French visionary and saint ( d. 1876 )

Mai 1806. jpg | In this 1806 French print, the woman with the Menorah represents the Jews being emancipated by Napoleon Bonaparte

In the course of the Napoleonic Wars, the fortress surrendered to French troops in 1806.

* 1806 – The French Army enters Berlin.

* 1806 – Believing he was facing a much larger force, Prussian Lieutenant General Friedrich von Romberg, commanding 5, 300 men, surrendered the city of Stettin to 800 French soldiers commanded by General Lassalle.

Much of Clausewitz's thinking was based on his experience as a Prussian war planner concerned with how to use popular forces in an insurrectionary struggle against the much-superior French forces which occupied Prussia after 1806 — how, in short, to wage a " Spanish War in Germany.

* 1806 – Christophe Léon Louis Juchault de Lamoricière, French general ( d. 1865 )

* 1806 – Pierre Jeandeau patents the first latch needle ( for using on knitting machine ).

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.

* November 12 – Jean Joseph Mounier, French politician ( d. 1806 )

By 1806, several " Captain Lafitte " s operated in New Orleans ; Jean Lafitte was likely one of them.

In 1806, Jean Marie Joseph Farina, a grand-grand-nephew of Giovanni Maria Farina ( 1685 – 1766 ), opened a perfumery business in Paris that was later sold to Roger & Gallet.

** Jean Louis Delolme, constitutional writer ( died 1806 )

In March 1806, he married Margaret Maret ( 1784 – 1875 ), daughter of Count Jean Philibert Maret and niece of Hugues-Bernard Maret.

Jean Joseph Mounier ( 12 November 1758 – 28 January 1806 ) was a French politician and judge.

He continued to write on birds, producing Histoire naturelle et générale des colibris, oiseaux-mouches, jacamars et promerops ( 1802 ) with illustrations by his friend Jean Baptiste Audebert, followed by Histoire naturelle des plus beaux oiseaux chanteurs de la zone torride ( 1806 ).

* Jean Honore Fragonard ( French, 1732 – 1806 ) Best known for " The Swing "

( 1767 – 1828 ), Flag Captain under Admiral Jervis, Flag Captain of King George III's Royal Yacht ( 1801-4 ) and Commissioner of Sheerness Dockyard ( 1804-6 ) & Portsmouth Dockyard ( 1806 – 28 ), married Mary Whitbread, daughter of Samuel Whitbread ( 1720-1796 ), whose sons: Sir George Grey, 2nd Baronet ( 1799 – 1882 ) was a British Statesman and Home Secretary, and Charles Samuel Grey, Paymaster of Civil Service in Ireland ; and daughters: Mary married Capt Thomas Monck Mason, Elizabeth married Charles Noel, 1st Earl of Gainsborough, Harriet married Revd John Jenkinson, Hannah Jean married Sir Henry Thompson, 3rd Baronet, Jane married Francis Baring,

* August 19 – Jean Dauberval, dancer ( died 1806 )

* 1806 – Arc de Triomphe, Paris from Jean Chalgrin commissioned by Napoleon Bonaparte.

On 10 October 1806 a united Prussian and Saxon contingent met with a corps of the French Grande Armée under General Jean Lannes at the Battle of Saalfeld, whereby Prince Louis Ferdinand of Prussia was killed.

In 1806 Napoleon I Bonaparte created it a duché grand-fief for general Anne Jean Marie René Savary.

In 1806, a French physician, Jean Louis Alibert, was the first to describe a patient with mycosis fungoides.

Jean Louis Delolme ( 1740 – 16 July 1806 ) was a Swiss jurist and constitutional writer.

* Jean Charles Dominique de Lacretelle, Précis historique de la Révolution française ( Paris, 1801 – 1806 ).

Jean Reynaud ( 1806, Lyon-1863 ) was a French socialist philosopher.

* Jean Chabot ( 1806 – 1860 ), lawyer, judge and political figure in Canada East

* Jean Dauberval ( 1742 – 1806 ), Ballet master of the Ballet du Théâtre de l ' Académie Royale de Musique from 1781 – 1783, he is known today as the Father of the Comedic ballet

Jean Dauberval, a. k. a. Jean D ’ Auberval, ( born Jean Bercher in Montpellier, France on 19 August 1742 ; and died in Tours, on 14 February 1806 ), was a French dancer and ballet master.