In 1820, Pierre's mother began trying to get him admitted into the city college in Besançon.

The Aphrodite of Milos was discovered on 8 April 1820 by a peasant named Yorgos Kentrotas, inside a buried niche within the ancient city ruins of Milos, the current village of Tripiti, on the island of Milos ( also Melos, or Milo ) in the Aegean.

As late as 1820 the site was undeveloped pasture outside the boundaries of the old city, some distance from the commercial centre.

Between 1820 and 1824, the county's territory extended to the Michigan boundary ; consequently, the plat for the town of Fort Wayne ( now a city ) is recorded in Randolph County's Recorder's Office.

The Ouachita Post grew so large that it later became the city of Monroe around 1820, which is named for the first powered steamboat to sail the Ouachita River.

The first development by a European settler within what is now the city limits was made by Preston Brickey in 1820.

In 1820 David Lovett subdivided his property into quarter-acre " city lots.

This district was merged from 1820 till 1861 with the district Elberfeld, which then became a city in its own right, now it's part of Wuppertal.

The city became free on October 9, 1820, and the Guayaquil Department ( one of the original subdivisions of Ecuador ) was founded soon afterwards.

The municipal government was restored in 1820 with the title of city population.

The fast-growing port city of Baltimore, Maryland faced economic stagnation unless it opened routes to the western states, as New York had done with the Erie Canal in 1820.

The unidentified illness caused his death at Sulphur Springs ( now within the city of St. Louis ) on August 12, 1820.

On September 8, 1820, the Expedición Libertadora of Peru, organized mainly by Argentinians and with some Peruvian and Chilean involvement, landed on the beach at Paracas, near the city of Pisco, Peru.

At the beginning of the 19th century, a Polish-language school was organised in the city by Tymoteusz Gizewiusz In 1820 Fryderyk Tymoteusz Krieger became the superintendent of the school and actively defended the rights of local Poles to use the Polish language.

* Marshal Lefebvre, duc de Dantzig – 28 May 1807 ( extinct 1820 ) – Dantzig was then still a city republic, which became part of Prussia after Napoleon's defeat, and is now Gdańsk in Poland

The city ramparts saved the city from floods in 1809 and 1820.

In 1820, insurgents took the city, despite Santa Anna ’ s attempts to stop them.

In 1820 Irish-born John England became the first Catholic bishop in the mainly Protestant city of Charleston, South Carolina.

Moreover, a first oath took place in this city on December 15, 1820, after several uprisings in Huamalíes, Huallanca and Ambo.

The first documented report of the cone-shaped Schultüte comes from the city of Jena in 1817, closely followed by reports from Dresden ( 1820 ) and Leipzig ( 1836 ).

Under the reign of king Gia Long ( 1761 – 1820 ), when Malay pirates built a base here and subsequently became a danger to traders in Gia Định city, the king his army to crack down on the pirates.

A Democrat, he served on the city council of Baltimore in 1820 and both houses of the Maryland legislature.

The city formally declared its separation from Spain on 12 November 1820.

However, subsequent sweeping of the floor demonstrated that the Tudor floor surface continued underneath the wall, suggesting that the mediaeval blocks were simply reused when this wing was rebuilt in 1820.

* Savoy Chapel ( 1820 – 21 ), rebuilt south wall and added the west tower.

The village itself has a cafe, take-away, 2 pubs, 2 shops ( until the late 1950s, Rafter's showed weekly films from a makeshift projection room on the outside wall onto the far wall of the shop ), a post-office, St James's Roman Catholic church ( which dates back to 1833 ) and St Anne's Church of Ireland ( which dates back to 1820 ), 2 butchers, a newly designed community centre, family and resource centre and indoor sports hall ( located outside the village ), pottery-shop and a hairdresser.

The Russian abacus was brought to France around 1820 by the mathematician Jean-Victor Poncelet, who served in Napoleon's army and had been a prisoner of war in Russia.

As well as holding positions at this school until 1828, in 1819 and 1820 Ampère offered courses in philosophy and astronomy, respectively, at the University of Paris, and in 1824 he was elected to the prestigious chair in experimental physics at the Collège de France.

Australian English started diverging from British English after the founding of the colony of New South Wales in 1788 and was recognised as being different from British English by 1820.

Anne Brontë (; 17 January 1820 – 28 May 1849 ) was a British novelist and poet, the youngest member of the Brontë literary family.

Anne, the youngest member of the Brontë children, was born on 17 January 1820, at 74 Market Street in Thornton where her father was curate and she was baptised there on 25 March 1820.

* Daniel Boone ( November 2, 1734 October 22 – September 26, 1820 ) was an American pioneer, explorer, and frontiersman whose frontier exploits made him one of the first folk heroes of the United States.

A significant contribution to the chemistry of alkaloids in the early years of its development was made by the French researchers Pierre Joseph Pelletier and Joseph Bienaimé Caventou, who discovered quinine ( 1820 ) and strychnine ( 1818 ).

The relation between electric current, magnetic fields and physical forces was first noted by Hans Christian Ørsted who, in 1820, observed a compass needle was deflected from pointing North when a current flowed in an adjacent wire.

The trumpet was a natural brass instrument prior to about 1795, and the horn before about 1820.

The composer Manuel Robles and the poet Bernardo de Vera y Pintado fulfilled this mandate and their " National Song " debuted on 20 August 1820 in the Domingo Arteaga theater, although other historians claim that it was played and sung during the festivities of September 1819.

Therefore, by the end of the decade, some Cubans were inspired by the successes of Simón Bolívar, despite the fact that the Spanish Constitution was restored in 1820.

When the whaleship Essex was rammed and sunk by a whale in 1820, the captain opted to sail 3000 miles upwind to Chile rather than 1400 miles downwind to the Marquesas because he had heard the Marquesans were cannibals.

In 1820, the colony of Cape Breton Island was merged for the second time with Nova Scotia.

The symbol was used by André-Marie Ampère, after whom the unit of electric current is named, in formulating the eponymous Ampère's force law which he discovered in 1820.

The land which is now Columbus was bought by General John Tipton and Luke Bonesteel in 1820.

The cornet was originally derived from the post horn around 1820 in France.

In 1820, the Colony of Cape Breton Island was merged back into the Colony of Nova Scotia for the second time by the British government.

In 1784, the two provinces were divided ; Nova Scotia was split into Nova Scotia, Cape Breton Island ( rejoined to Nova Scotia in 1820 ), Prince Edward Island, and New Brunswick, while Quebec was split into Lower Canada ( southern Quebec ) and Upper Canada ( southern through lower northern Ontario ).