Although myths and speculation about a Terra Australis (" Southern Land ") date back to antiquity, the first confirmed sighting of the continent of Antarctica is commonly accepted to have occurred in 1820 by the Russian expedition of Fabian Gottlieb von Bellingshausen and Mikhail Lazarev on Vostok and Mirny.

* 1820 – A Russian expedition led by Fabian Gottlieb von Bellingshausen and Mikhail Petrovich Lazarev discovers the Antarctic continent approaching the Antarctic coast.

In 1819 – 1820, Johann Baptist von Spix and Carl Friedrich Philipp von Martius were engaged in an expedition to Brazil, and on their return to Europe, amongst other collections of natural objects they brought home an important set of the fresh water fish of Brazil, and especially of the Amazon River.

In 1820 a Russian expedition discovered the continent of Antarctica.

* January 28, 1820 – A Russian expedition led by Fabian Gottlieb von Bellingshausen and Mikhail Petrovich Lazarev approaches the Antarctic coast ( see History of Antarctica ).

In 1820, several expeditions claimed to have been the first to have sighted Antarctica, with the very first being the Russian expedition led by Fabian Gottlieb von Bellingshausen and Mikhail Lazarev.

It is certain that on 28 January 1820 ( New Style ), the expedition led by Fabian von Bellingshausen and Mikhail Petrovich Lazarev on two ships reached a point within 20 miles ( 40 km ) of the Antarctic mainland and saw ice-fields there.

The first Anglo-American expedition to come through the county was led by Stephen H. Long who mistook the Canadian River for the Red River, in August 1820.

Governor Lewis B. Cass led an expedition through the area in 1820.

Schoolcraft was a key member of the 1820 Cass Expedition, organized by territorial governor Lewis Cass to explore the Michigan Territory ; the expedition played an important role in encouraging settlement of the territory.

During this expedition, which lasted from May 1819 to November 1820, Sabine noted that changes in magnetic intensity had taken place since his previous visit.

In 1820 – 1825, on a scientific expedition to the Middle East with his friend Wilhelm Hemprich, he collected thousands of specimens of plants and animals.

He had been part of a previous expedition in 1820 led by General Lewis Cass that had named nearby Cass Lake ( which is downstream from Itasca ) as the source of the river.

The genus is named for Edwin James, the botanist for Stephen Long's expedition that explored the territory between the Platte and Arkansas Rivers in 1820.

In 1820, he led an expedition to the northern part of the territory, in the northern Great Lakes region in present-day northern Minnesota, in order to map the region and discover the source of the Mississippi River.

" When Stephen Long led an expedition to the area in 1820, he labeled the area on his map as the " Great American Desert.

Roe's next voyage, the King expedition of 1820, was again intended to survey along the north coast, but they ran into violent weather almost as soon as they left Sydney.

Other notable explorations included the Pike expedition of 1806 – 07 by Zebulon Pike, the journey along the north bank of the Platte River in 1820 by Stephen H. Long to what came to be called Longs Peak, the John C. Frémont expedition in 1845 – 46, and the Powell Geographic Expedition of 1869 by John Wesley Powell.

He first sent an expedition westward ( Feb. 1820 ) which conquered and annexed the Siwa oasis.

Beginning in the spring of 1820, Schoolcraft served as a geologist on the Lewis Cass expedition.

Arriving a month earlier than the 1820 expedition, he was able to take advantage of higher water to navigate to Lake Itasca.

During this expedition Bellingshausen and Lazarev became the first explorers to see the land of Antarctica on January 28, 1820 ( New Style ).

Leaving Portsmouth on 5 September 1819 the expedition crossed the Antarctic Circle ( the first to do so since Cook ) on 26 January 1820.

It was reported in the local newspapers that Johnson's friends intended to nominate him for governor in the 1820 election.

* 1820 ( September ) Perkins had sold 1, 000 plates he had intended to use on the Bank of England project.

While these writers were all more or less academic, and appealed to the cultured few, four poets of the people addressed a far wider public: Verdi ( 1779 – 1820 ), of Bordeaux, who wrote comic and satirical pieces ; Jean Reboul ( 1796 – 1864 ), the baker of Nîmes, who never surpassed his first effort, L ' Ange à l ' enfant ( 1828 ); Victor Gelu ( 1806-188 ~), relentless and brutal, but undeniably powerful of his kind ( Fenian ci Grouman ; dix chansons provençales, 1840 ); and, greatest of them all, the true and acknowledged forerunner of the felibres, Jacques Jasmin, whose poems, both lyrical and narrative, continue to find favour with men of the highest culture and literary attainments, as with the villagers for whom they were primarily intended.

The tower was intended as a signal mast, attended by sailors who would be accommodated within the ground floor rooms, although these were in use as a tea room by 1820.

In 1820, LeBreton lived at the community of Britannia, Ottawa, and overheard Lord Dalhousie explain that the intended plan for the Rideau Canal was from Dow's Lake to the Chaudière Falls, directly crossing the flats.

Lieutenant Stennett ’ s Hints to Sir Harcourt Lees by the Anti-Jacobin British Review for September ; to which is prefixed A Short Introduction, containing a most important Letter from a Gentleman educated and intended for the Popish Priesthood, Dublin, 1820, 8vo.

In April 1820, the Brontës moved into the a five-roomed Haworth Parsonage which became their home for the rest of their lives.

Beginning in 1820, Aarau has been a refuge for political refugees.

After the sinking of the Essex of Nantucket by a whale, on November 20, 1820, ( an important source event for Herman Melville's Moby-Dick ) the survivors, in three small boats, resorted, by common consent, to cannibalism in order for some to survive.

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

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.

The style of Miyake Taiko has developed as a music for Gozu Tenno Sai — a traditional festival held on July in Miyake-jima since 1820.

Integrating + 1. 7 ms / d / cy and centering the resulting parabola on the year 1820 yields ( to a first approximation ) 31 ×(( Year − 1820 )/ 100 )< sup > 2 </ sup > seconds for ΔT.

The second chapter in Ecuador's struggle for emancipation from Spanish colonial rule began in Guayaquil, where independence was proclaimed in October 1820 by a local patriotic junta under the leadership of the poet José Joaquín de Olmedo.

While preparing for an evening lecture on 21 April 1820, Hans Christian Ørsted made a surprising observation.

He brought out, in the Annals of Oriental Literature ( London, 1820 ), an essay entitled, " Analytical Comparison of the Sanskrit, Greek, Latin and Teutonic Languages ", in which he extended to all parts of the grammar what he had done in his first book for the verb alone.

The further charge that Bopp, in his Comparative Grammar, gave undue prominence to Sanskrit stands disproved by his own words ; for, as early as the year 1820, he gave it as his opinion that frequently the cognate languages serve to elucidate grammatical forms lost in Sanskrit ( Annals of Or.

A most unusual use of granite was in the construction of the rails for the Haytor Granite Tramway, Devon, England, in 1820.

Once again in the revolution of 1820, it was the independent towns that led the drive for constitutional change in Spain.

Yet in 1820, weakened by illness and with a decreasing support for his authoritarian regime, he killed himself with a silver bullet rather than face a coup d ' état.

Chayei Adam and Chochmat Adam by Avraham Danzig ( Poland, 1748 – 1820 ) are similar Ashkenazi works, but are regarded as a more appropriate basis for practice.

The sons of Montgolfier obtained an English patent for an improved version in 1816, and this was acquired, together with Whitehurst's design, in 1820 by Josiah Easton, a Somerset-born engineer who had just moved to London.

Polk was admitted to the bar in June 1820 and his first case was to defend his father against a public fighting charge, and secure his release for a one dollar fine.

The two men remained in Naples for a week before heading off to Rome in a small carriage, where they arrived mid-November 1820 and met Keats's physician, Dr. James Clark.

The I-Kiribati or Gilbertese people settled what would become known as the Gilbert Islands ( named for British captain Thomas Gilbert by von Krusenstern in 1820 ) some time in between 3000 BC and 1300 AD.

The Kansas – Nebraska Act of 1854 () created the territories of Kansas and Nebraska, opening new lands for settlement, and had the effect of repealing the Missouri Compromise of 1820 by allowing settlers in those territories to determine through Popular Sovereignty whether they would allow slavery within each territory.

A wave of indignation erupted across the North as anti-slavery elements cried betrayal, for Kansas had been officially closed to slavery since the Missouri Compromise of 1820, and that Compromise was now repealed because of popular sovereignty.

Ranjit Deo's grandnephew, Gulab Singh, subsequently sought service at the court of Ranjit Singh, distinguished himself in later campaigns, especially the annexation of the Kashmir valley, and, for his services, was appointed governor of Jammu in 1820.