The earliest cession of territory was made in 1818, with a later boundary against the neighboring Choctaw tribe in 1820, opening up the southeastern corner of the Arkansas Territory for settlement.

In ancient days they were the most powerful tribe of the district, but in 1820 their numbers did not exceed 2000.

During the 19th century, the river formed the border of the Cape Colony and was hotly contested during the Xhosa Wars of 1779 to 1878 between the Xhosa nation on the one side and the Dutch farmers and the 1820 Settlers from England on the other, and in 1835, the Fingo tribe was permitted to settle on the river's banks.

Ritter proceeded, `` You now emerge into a new epoch in which late in the year 1819 or 1820, you will have to reckon.

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

The opening of the Sankey Canal in 1757, followed by the Bridgewater Canal in 1761, which halved the price of coal in Liverpool and Manchester England, respectively, triggered a period of " canal mania " in Britain so that between 1760 and 1820 over one hundred canals were built.

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.

ET, in turn, can now be seen ( in light of modern results ) as close to the average mean solar time between 1750 and 1890 ( centered on 1820 ), because that was the period during which the observations on which Newcomb's tables were based were performed.

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.

Prominent examples include Coleridge's The Rime of the Ancient Mariner and Christabel and Keats ' La Belle Dame sans Merci ( 1819 ) and Isabella, or the Pot of Basil ( 1820 ) which feature mysteriously fey ladies ( Skarda and Jaffe 1981: 33-5, 132-3 ).

A late example of traditional Gothic is Melmoth the Wanderer ( 1820 ) by Charles Maturin which combines themes of Anti-Catholicism with an outcast Byronic hero ( Varma 1986 ).

In 1820, an expedition intended for the colonies ( which, at the time, were on the verge of being lost themselves, to rebels and the Monroe Doctrine ) revolted in Cadiz.

This was the start of the second bourgeois revolution in Spain, which would last from 1820 to 1823.

There were, however, also moves towards reunion, beginning with the unification of some secessionist churches into the United Secession Church in 1820, which united with the Relief Church in 1847 to form the United Presbyterian Church, which in turn joined with the Free Church in 1900 to form the United Free Church of Scotland.

Other notable pre-20th century examples include Giacomo Casanova's 1788 Icosaméron, a 5-volume, 1, 800-page story of a brother and sister who fall into the Earth and discover the subterranean utopia of the Mégamicres, a race of multicolored, hermaphroditic dwarfs ; Symzonia: A Voyage of Discovery by a " Captain Adam Seaborn " ( 1820 ) which reflected the ideas of John Cleves Symmes, Jr .; Edgar Allan Poe's 1838 novel The Narrative of Arthur Gordon Pym of Nantucket ; Jules Verne's 1864 novel A Journey to the Center of the Earth, which described a prehistoric subterranean world ; and George Sand's 1884 novel Laura, Voyage dans le Cristal where unseen and giant crystals could be found in the interior of the Earth.

Pierce that read, “ except the eighth section of the act preparatory to the admission of Missouri into the Union, approved March 6, 1820, which was superseded by the legislation of 1850, commonly called the compromise measures, and is declared inoperative .” Identical legislation was soon introduced in the house.

He published lectures on the history of ancient sculpture in 1806, and painting in 1811, and edited the three volumes of an archaeological periodical called Amalthea from 1820 to 1825, which included contributions from the most eminent classical archaeologists of the day.

Drafted by a treaty and a bill of sale, and constituted between 1820 and 1858, the Princely State of Kashmir and Jammu ( as it was first called ) combined disparate regions, religions, and ethnicities: to the east, Ladakh was ethnically and culturally Tibetan and its inhabitants practised Buddhism ; to the south, Jammu had a mixed population of Hindus, Muslims and Sikhs ; in the heavily populated central Kashmir valley, the population was overwhelmingly Sunni Muslim, however, there was also a small but influential Hindu minority, the Kashmiri brahmins or pandits ; to the northeast, sparsely populated Baltistan had a population ethnically related to Ladakh, but which practised Shi ' a Islam ; to the north, also sparsely populated, Gilgit Agency, was an area of diverse, mostly Shi ' a groups ; and, to the west, Punch was Muslim, but of different ethnicity than the Kashmir valley.

In 1820, during the Battle of Navarino, which took place in Greece, the British fleet was based in Malta.

Several other experiments followed, with André-Marie Ampère, who in 1820 discovered that the magnetic field circulating in a closed-path was related to the current flowing through the perimeter of the path ; Carl Friedrich Gauss ; Jean-Baptiste Biot and Félix Savart, both of which in 1820 came up with the Biot-Savart Law giving an equation for the magnetic field from a current-carrying wire ; Michael Faraday, who in 1831 found that a time-varying magnetic flux through a loop of wire induced a voltage, and others finding further links between magnetism and electricity.

Smith later wrote that he had seen a vision of God the Father and Jesus Christ in spring 1820 in answer to his question of which denomination he should join.

The General Maritime Treaty of 1820 between the East India Company and the sheikhs of the coastal area — which became known as the Trucial Coast because of the series of treaties between the sheikhs and the British — was a way of ensuring safe passage.

Prior to 1820, the bark was first dried, ground to a fine powder, and then mixed into a liquid ( commonly wine ) which was then drunk.

* Daniel Boone ( 1734 – 1820 ), explorer and pioneer, lived in Wilkes County for several years and married a Wilkes County native before moving west to Kentucky.

After the death of his wife, John Renty Baker became a recluse and lived in a rockhouse ( rockshelter ) near the mouth of Buffalo Creek and died there in 1820.

The first white man known to arrive was a German, Johann Schoonover, who lived for a short time on the creek later named for him to trade with the Indians, about 1820.

* Esther Hunt ( 1751 – 1820 )-a pioneer who lived on America's frontier as a wife, a mother and a leader in her Quaker faith.

Frederica retired to Oatlands, where she lived until her death in 1820.

Nearly the whole of the year 1818 he spent in Rome, and afterwards he lived for several years at Coburg ( 1820 – 1826 ).

Founder Joseph Smith, Jr., whose family lived on a farm that straddled the line between Palmyra and Manchester, claimed to have been visited by God the Father and Jesus Christ in 1820, an event known as the First Vision.

" Church records, newspapers, religious journals, and other contemporary sources clearly reveal that great awakenings occurred in more than fifty western New York towns or villages during the revival of 1819 – 1820 .... Primary sources also specify that great multitudes joined the Methodist, Presbyterian, and Calvinist Baptist societies in the region of country where Joseph Smith lived.

* The Twinings tea family lived and did business in the parish and, consequently, many members of the Twining family were baptised in the church, including the social reformer Louisa Twining in 1820.

* Matthew Armour ( 1820 – 1903 ), Sanday ’ s radical Free Kirk Minister who lived at The West Manse ( formerly the Free Church of Scotland manse ) for over half a century

In 1820, following a short lived revolution in the Kingdom of the Two Sicilies, Francesco IV started to arrest and jail suspected patriots on trumped-up, flimsy charges.

The family lived in poverty, but with help from a half-brother of his who was a pastor at Kvikkjokk, Lars Levi was able to enter Uppsala University in 1820, where he proved to be a brilliant student.

He was born at Fayetteville, North Carolina ; his family lived for a time in Florida and after 1820 in Alabama, where Ochiltree began practicing law.

On Horner's death in 1837, Sarah Horner lived with another daughter, Charlotte Augusta ( 1819 ?-- 1863 ; m. 1849 )), and son-in-law, John Lamble Harrison ( 1820 ?-- 1877 )), and their daughters, Charlotte Sarah ( b. 1852 ) and Elizabeth Caroline ( b. 1856 ), at 33, Grovesnor Place, Bath.

From 1820 to 1822 the Lytes lived in Sway, Hampshire.

His later years were free from politics, and till his death on 21 November 1820 he lived very quietly and almost forgotten.

By 1820 Pickersgill had become sufficiently successful in her business to purchase the house she had been renting, and lived there for the remainder of her life.

At the same time her mother and brother, Lucien Bonaparte, lived in Villa Rufinella from 1804 to 1820.

From 1820 to 1822, Bowdich lived in Paris, studying mathematics and the natural sciences, and was on intimate terms with Georges Cuvier, Alexander von Humboldt and other savants.

From 1820 until his death he lived at 25 St James's Place.

During the residence of the Indians in Washington Township, as early as 1820, only few white men lived in the area.

The couple lived in Italy for ten years from 1820 to 1830.

Bagborough House was built in 1739 by the Popham family, enlarged in 1820 and 1900, and is now lived in by Diana and Philip Brooke-Popham.

The second daughter, Elizabeth, lived the longest, being born on 10 December 1820 and dying on 4 March 1821.