Spaight died on September 6, 1802, following injuries sustained in a duel with John Stanly, the Federalist Congressman who had defeated him in the election of 1800 for the House of Representatives.

In 1800, Manthey went abroad and Oersted was appointed manager of the Lion Pharmacy.

Until 1800, Abensberg was a municipality belonging to the Straubing district of the Electorate of Bavaria.

Salieri's music slowly disappeared from the repertoire between 1800 and 1868, and was rarely heard after that period until the revival of his fame in the late 20th century.

Related to this Mosel quotes the aged composer concerning the radical changes in musical taste that were underway in the age of Beethoven, " From that period 1800 I realized that musical taste was gradually changing in a manner completely contrary to that of my own times.

Among the most successful of his 37 operas staged during his lifetime were Armida ( 1771 ), La fiera di Venezia ( 1772 ), La scuola de ' gelosi ( 1778 ), Der Rauchfangkehrer ( 1781 ), Les Danaïdes ( 1784 ), which was first presented as a work of Gluck's, La grotta di Trofonio ( 1785 ), Tarare ( 1787 ) ( Tarare was reworked and revised several times as was Les Danaïdes ), Axur, re d ' Ormus ( 1788 ), La cifra ( 1789 ), Palmira, regina di Persia ( 1795 ), Il mondo alla rovescia ( 1795 ), Falstaff ( 1799 ), and Cesare in Farmacusa ( 1800 ).

Diabelli was trained to enter the priesthood and in 1800 he joined the monastery at Raitenhaslach, Bavaria.

Pococke's complete Latin translation was eventually published by Joseph White of Oxford in 1800.

In an official review commissioned by UK government ministers it was reported that the needless use of anti-psychotic medication in dementia care was widespread and was linked to 1800 deaths per year.

The concept of ' back ' country, which initially meant land beyond the settled regions, was in existence in 1800.

Barcelonnette was the seat of the District of Barcelonnette from 1790 to 1800.

The bequest of a collection of books, engraved gems, coins, prints and drawings by Clayton Mordaunt Cracherode in 1800 did much to raise the Museum's reputation ; but Montagu House became increasingly crowded and decrepit and it was apparent that it would be unable to cope with further expansion.

According to Kenneth S. Rogoff, " Although the development of international capital markets was quite limited prior to 1800, we nevertheless catalog the numerous defaults of France, Portugal, Prussia, Spain, and the early Italian city-states.

By 1800, the term was practically extinct.

The French-sponsored Roman Republic ( 15 February 1798 – 23 June 1800 ) was headed by multiple consuls:

Rome was occupied by France ( 11 July – 28 September 1799 ) and again by Naples ( 30 September 1799 – 23 June 1800 ), bringing an end to the Roman Republic.

Enclosure was aided by the greatly enhanced access provided by the construction of the first turnpike roads over the moor: the road between Ashburton and Two Bridges opened in around 1800, for instance.

In 1779, New Pennacook Plantation was granted to Timothy Walker, Jr. and his associates at what would be incorporated in 1800 as Rumford, Maine, the site of Pennacook Falls.

The debate was resolved in 1897 when J. J. Thomson measured the mass of cathode rays, showing they were made of particles, but were around 1800 times lighter than the lightest atom, hydrogen.

Barks was the descendant of Jacob Barks who came to Missouri from North Carolina around 1800.

At the age of 12, David was sent to the University of Edinburgh ( graduating MA in 1800 ), being intended for the clergy.

Dublin suffered a period of political and economic decline during the 19th century following the Act of Union of 1800, under which the seat of government was transferred to the Westminster Parliament in London.

In April 1800, through the introduction of Hungarian writer Ignaz Aurelius Fessler, he was initiated into Freemasonry in the Lodge Pythagoras of the Blazing Star where he was elected minor warden.

He moved back to New Haven in 1798 ; he was elected as a Federalist to the Connecticut House of Representatives in 1800 and 1802 – 1807.

Under the system in place then and through the election of 1800, each voting elector cast two votes — the recipient of the greatest number of votes was elected president, the second greatest number, vice-president.

Although the election of 1800 had given majority control of the House of Representatives to the Republicans by 103 seats to 39, the presidential election would be decided by the outgoing House, which had been elected in the Federalist landslide of 1798 and was controlled by the Federalists, 60 seats to 46.

After several months of stalemate, on 14 March 1800, Chiaramonti was elected as a compromise candidate, certainly not the choice of die-hard opponents of the French Revolution, and took the name of Pius VII.

He later went on to become a professor of physics at the Collège de France around 1800, and three years later was elected as a member of the Academy of Sciences.

When Thomas Jefferson was elected as the third president of the United States in 1800, he asked Madison to serve as his Secretary of State.

He held no political office until he was elected to the New York State Assembly in 1800 and 1801.

After 1800, under the provisions of the Act of Union, the Parliament of Ireland was abolished and the Irish peers were entitled to elected twenty-eight of their number to sit in the British House of Lords, in London, as representative peers.

On his return in 1818 he was made custodian of the botanical gardens in Berlin, and was elected a member of the Academy of Sciences, and in 1819 he married his friend Hitzig's foster daughter Antonie Piaste ( 1800 – 1837 ).

At the Riksdag at Norrköping in 1800, he was elected marshal of the Diet ( Lantmarskalk ), and led the royalist party with consummate ability.

In 1800 he was elected a full Academician.

* February 19, 1801 — United States presidential election, 1800: An electoral tie between Thomas Jefferson and Aaron Burr was resolved when Jefferson was elected President and Burr Vice President by the House of Representatives

** Uriah Tracy ( F ), elected May 14, 1800

** John E. Howard, ( F ), elected November 21, 1800

| style =" font-size: 80 %" | Resigned June 6, 1800, having been elected U. S. Senator

* Richard Bingham, 2nd Earl of Lucan, 2nd Baron Lucan, 8th Baronet ( 1764 – 1839 ) ( elected a Representative Peer in 1800 )

* George Charles Bingham, 3rd Earl of Lucan, 3rd Baron Lucan, 9th Baronet ( 1800 – 1888 ) ( elected a Representative Peer in 1840 )

He was chosen an associate of the Royal Academy in 1798, in 1789 he married Mary, eldest daughter of James Power of Youghal, and in 1800 he was elected a Royal Academician.

At that conference in 1800, they adopted a name, the United Brethren in Christ, and elected Boehm and Otterbein as bishops of the conference.

Greenwood LeFlore or Greenwood Le Fleur ( June 3, 1800 – August 31, 1865 ) was elected Principal Chief of the Choctaw in 1830 before removal.

From early 1800 to 1837, the government and the elected assembly were at odds on virtually every issue.

At that conference in 1800, they adopted a name, the United Brethren in Christ, and elected Boehm and Otterbein as bishops of the conference.

He returned to the United States in 1798, and he was elected in April 1800, as a Federalist, to the United States Senate, filling the vacancy caused by the resignation of James Watson.

Under the Acts of Union 1800, Irish peers elected twenty-eight representative peers, who served for life.