Further observations were made by the German explorer Alexander von Humboldt during his South American journey from 1799 to 1803.

In 1789 his Observations sur les hôpitaux ( Observations on hospitals, 1790 ) procured him an appointment as administrator of hospitals in Paris, and in 1795 he became professor of hygiene at the medical school of Paris, a post which he exchanged for the chair of legal medicine and the history of medicine in 1799.

In 1795 he published Persian Miscellanies ; in 1797-1799, Oriental Collections ; in 1799, Epitome of the Ancient History of Persia ; in 1800, The Oriental Geography of Ebn Haukal ( The Oriental Geography of Ibn Hawqal ); and in 1801, a translation of the Bakhtiyar Nama and Observations on Some Medals and Gems.

A native New Englander, Amos Bronson Alcott was born in Wolcott, Connecticut ( only recently renamed from " Farmingbury ") on November 29, 1799.

His late opera based on William Shakespeare's The Merry Wives of Windsor, Falstaff ossia Le tre burle ( Falstaff, or the Three Tricks ), ( 1799 ) has found a wider audience in modern times than its original reception promised.

In 1796, as chief of all Austrian forces on the Rhine, Charles out-generaled Jean-Baptiste Jourdan at Amberg and Würzburg, and forced Jean Victor Marie Moreau to withdraw across the Rhine, and followed these victories with others at Zürich, Ostrach, Stockach, and Messkirch in 1799.

The definitive metre bar, manufactured from platinum, was presented to the French legislative assembly on 22 June 1799.

Also encouraged by the British victory were the Austrian Empire and the Russian Empire, both of whom were mustering armies as part of a Second Coalition, which declared war on France in 1799.

In 1806, Thomas Bruce, 7th Earl of Elgin, ambassador to the Ottoman Empire from 1799 to 1803 removed the large collection of marble sculptures from the Parthenon, on the Acropolis in Athens and transferred them to the UK.

He was elected as first consul of France on 10 November 1799 with the help of his brother, Lucien Bonaparte, and president of the Council of Five Hundred at Saint-Cloud.

* 1799: Doctoral dissertation on the Fundamental theorem of algebra, with the title: Demonstratio nova theorematis omnem functionem algebraicam rationalem integram unius variabilis in factores reales primi vel secundi gradus resolvi posse (" New proof of the theorem that every integral algebraic function of one variable can be resolved into real factors ( i. e., polynomials ) of the first or second degree ")

Map of the Cassiquiare canal based on Alexander von Humboldt, 1799 observations.

He married Charlotte Small on June 10, 1799 at Île-à-la-Crosse, a mixed-blood child of a Scottish fur trader Patrick Small and a Cree mother.

The French Revolution (; 1789 – 1799 ), was a period of radical social and political upheaval in France that had a major impact on France and throughout the rest of Europe.

On Thursday, December 12, 1799, Washington spent several hours inspecting his plantation on horseback, in snow, hail and freezing rain — later that evening eating his supper without changing from his wet clothes.

" Washington died at home around 10 p. m. on Saturday, December 14, 1799, aged 67.

In 1799 he returned from Egypt and on 18 Brumaire ( 9 November ) overthrew the government, replacing it with the Consulate, in which he was First Consul.

These were both times he was in the area, and, by 1799, Coleridge was able to read Robert Southey's Thalaba the Destroyer, a work which also drew on Purchas's work.

The Kentucky state legislature passed the first resolution on November 16, 1798 and the second on December 3, 1799.

The political terms Left and Right were coined during the French Revolution ( 1789 – 1799 ), referring to the seating arrangement in the Estates General: those who sat on the left generally supported the radical changes of the revolution, including the creation of a republic and secularization, while those on the right were supportive of the traditional institutions of the Old Regime.

* 1799 December 10The French National Assembly specifies the platinum metre bar, constructed on 23 June 1799 and deposited in the National Archives, as the final standard.

The colony's new name honoured the fourth son of King George III, Prince Edward Augustus, the Duke of Kent ( 1767 – 1820 ), who subsequently led the British military forces on the continent as Commander-in-Chief, North America ( 1799 – 1800 ), with his headquarters in Halifax.

The neo-Gothic architect James Wyatt also carried out works on both the House of Lords and Commons between 1799 and 1801.

On 1799, as French soldiers under the command of Colonel d ' Hautpoul were strengthening the defences of Fort Julien, a couple of miles north-east of the Egyptian port city of Rashid, Lieutenant Pierre-François Bouchard spotted a slab with inscriptions on one side that the soldiers had uncovered.

He completed his training in pharmacy also, taking his degree with high honors in 1797, and in 1799 was awarded the degree of Doctor of Philosophy along with a prize for an essay in medicine.

* 1799 – Henri Druey, Swiss Federal Councilor ( d. 1855 )

* 1799 – Napoleonic Wars: The Battle of Mount Tabor – Napoleon drives Ottoman Turks across the River Jordan near Acre.

* 1728 – Joseph Black, Scottish chemist ( d. 1799 )

André-Marie Ampère took his first regular job in 1799 as a mathematics teacher, which gave him the financial security to marry Carron and father his first child, Jean-Jacques, the next year.

Amos Bronson Alcott ( November 29, 1799 – March 4, 1888 ) was an American teacher, writer, philosopher, and reformer.

Born in Connecticut in 1799, Alcott had only minimal formal schooling before attempting a career as a traveling salesman.

* 1799 – Napoleon leaves Egypt for France en route to seizing power.

* 1799 – The entire Dutch fleet is captured by British forces under the command of Sir Ralph Abercromby and Admiral Sir Charles Mitchell during the Second Coalition of the French Revolutionary Wars.

In 1799 Sir George Cayley set forth the concept of the modern airplane as a fixed-wing flying machine with separate systems for lift, propulsion, and control.

George Washington ( February 22, 1732-December 14, 1799 ), the country's first president, is often said to be the father of his country.

Patrick Henry ( May 29, 1736 – June 6, 1799 ) was an attorney, planter and politician who became known as an orator during the movement for independence in Virginia in the 1770s.

In 1799 all special tolls were abolished, and in 1802 the poll tax was removed.

In January 1799 he became a Rear-Admiral.

Ironworks were established at Llwydcoed and Abernant in 1799 and 1800 respectively, followed by others at Gadlys and Aberaman in 1827 and 1847.

In the campaign of 1799 he once more opposed Jourdan, whom he defeated in the battles of Ostrach and Stockach, following up his success by invading Switzerland and defeating Masséna in the First Battle of Zürich, after which he re-entered Germany and drove the French once more over the Rhine.

# Maria Johanna Ludovica Anna Amalia Nepomucena Aloysia Ignatia Xaveria Josepha Franziska de Chantal Eva Apollonia Magdalena Crescentia Vincentia ( b. Dresden, 5 April 1798-d. Dresden, 30 October 1799 ).

# Maria Theresia ( b. and d. Dresden, 15 October 1799 ).

The Electress gave birth for last time in 1799 to another stillborn child.