* 1821 – Alexis Bouvard detects irregularities in the orbit of Uranus

* July 21-Henri Alexis Brialmont ( born 1821 ), military engineer.

Henri Alexis Brialmont ( Venlo 25 May 1821 – Brussels 21 July 1903 ) was a Dutch-born Belgian military engineer.

Only two portraits of Labillardière survive: an 1821 lithograph of a sketch by Julien Leopold Boilly, and a lithograph by Langlumè based on a portrait by Alexis Nicolas Noël.

Aug. 4, 1821, nearly a century after Benjamin Franklin founded the Pennsylvania Gazette -- a century during which it had undergone several changes in ownership and a few brief suspensions in publication -- this paper made its first appearance as the Saturday Evening Post.

* The Consulate of Argos ( from 26 May 1821, under the Senate of the Peloponnese ) had a single head of state, styled consul, 28 March 1821 – 26 May 1821: Stamatellos Antonopoulos

Superpowers, such as the European great powers, had always felt no compunction in intervening in civil wars that affected their interests, while distant regional powers such as the United States could declare the interventionist Monroe Doctrine of 1821 for events in its Central American " backyard ".

He brought out in 1827 his Ausführliches Lehrgebäude der Sanskritsprache, on which he had worked since 1821.

Almost two years after Boyer had consolidated power in the west, in 1821, Santo Domingo declared independence from Spain and requested from Simón Bolívar inclusion in the Gran Colombia.

The news that Guatemala had declared the separation from Spain on September 15, 1821, the Provincial Government of Comayagua Honduras declared independence from the Spanish monarchy on September 15, 1821.

However, he underestimated the political and military strength of the capetanei ( καπεταναίοι – commanders ) who had led the revolt against Ottoman Empire in 1821, and who had expected a leadership role in the post-revolution Government.

Severn nursed Keats until his death on 23 February 1821, three months after they had arrived in Rome.

The United States had a long history of intervening in Liberia's internal affairs, occasionally sending naval vessels to help the Americo-Liberian ( freed slave ) ruling minority put down insurrections by indigenous tribes ( in 1821, 1843, 1876, 1910, and 1915 ).

The war had actually began since 23 February 1821.

Abel initially thought he had found the solution to the quintic equation in radicals in 1821.

In his Confessions of an English Opium-Eater ( 1821, p. 188 ), it is still about Ottoman, not Chinese, addicts that Thomas de Quincey writes: " I question whether any Turk, of all that ever entered the paradise of opium-eaters, can have had half the pleasure I had.

In 1821, Sébastien Érard invented the double escapement action, which incorporated a repetition lever ( also called the balancier ) that permitted a note to be repeated even if the key had not yet risen to its maximum vertical position.

Ever since October 1821, when the former Governor General, Juan de la Cruz Mourgeón, left the isthmus on a campaign in Quito and left the Veraguan colonel in charge, the separatists had been slowly converting Fábrega to the separatist side.

Thus, on November 28, 1821, the national assembly was convened and it was officially declared ( through Fábrega, who was invested with the title of Head of State of Panama ) that the isthmus of Panama had severed its ties with the Spanish Empire and its decision to join New Granada and Venezuela in Bolivar's recently founded Republic of Colombia.

While Panama had also been included in the Viceroyalty during the colonial period, the Isthmus ' economic and political ties had been much closer, for all practical purposes, to the Viceroyalty of Peru ( 1542 – 1821 ).

In 1821, Francia struck again, summoning all of Paraguay's 300 or so peninsulares ( people born in Spain ) to Asunción's main square, where he accused them of treason, had them arrested, and held them in jail for 18 months.

But when, as punishment for piracy, an East India Company vessel bombarded Doha in 1821, destroying the town and forcing hundreds to flee, the residents had no idea why they were being attacked.

She had five children: Diana ( 1815 ), fathered by Robert ; and Thomas who died shortly after birth ; Peter ( 1821 ); Elizabeth ( 1825 ); and Sophia ( ca.

This two-part bridge is best described by Rev. Timothy Dwight, president of Yale College, in his `` Travels In New-England And New-York '', published in New Haven in 1821.

Perhaps the most notable of these was the Protestant pastor Georg Conrad Horst ( 1779 – 1832 ), who from 1821 to 1826 published a six-volume collection of magical texts in which he studied grimoires as a peculiarity of the Mediaeval mindset.

In 1790 he published at Leipzig a treatise on composition, of which a third edition appeared in 1821.

As the fruit of this visit, he published his treatises Betrachtungen über Öffentlichkeit und Mündigkeit der Gerechtigkeitspflege ( 1821 ) and Über die Gerichtsverfassung und das gerichtliche Verfahren Frankreichs ( 1825 ).

Germain published her prize-winning essay at her own expense in 1821, mostly because she wanted to present her work in opposition to that of Poisson.

A third catalogue of discoveries made after 1783 was published in 1821 ( 145 systems ).

The Times and its sister paper The Sunday Times ( founded in 1821 ) are published by Times Newspapers, since 1981 a subsidiary of News International, itself wholly owned by the News Corporation group headed by Rupert Murdoch.

In 1821 he published another paper, Nouvelles considérations sur la théorie des proportions déterminées dans les combinaisons, et sur la détermination des masses des molécules des corps ( New Considerations on the Theory of Proportions Determined in Combinations, and on Determination of the Masses of Atoms ) and shortly afterwards, Mémoire sur la manière de ramener les composès organiques aux lois ordinaires des proportions déterminées ( Note on the Manner of Finding the Organic Composition by the Ordinary Laws of Determined Proportions ).

Streeter clearly lied about his discovery of the " District of Lake Michigan " in 1886, referencing a map published in 1821 to determine that his " District " was outside of City limits.

Diez, the principal founder of Romance-language philology, impressed by the comparative methods of Jakob Grimm in Deutsche Grammatik, which came out in 1819 and was the first to use such methods in philology, decided to apply them to the Romance languages and discovered Raynouard's work, Grammaire comparée des langues de l ' Europe latine dans leurs rapports avec la langue des troubadours, published in 1821.

Drawing by Jean-Baptiste-Joseph Debay of the statue with the missing inscribed plinth published in 1821

Early formal organizations run by converted Jews include: the Anglican London Society for promoting Christianity among the Jews of Joseph Frey ( 1809 ), which published the first Yiddish New Testament in 1821 ; the " Beni Abraham " association, established by Frey in 1813 with a group of 41 Jewish Christians who started meeting at Jews ' Chapel, London for prayers Friday night and Sunday morning ; and the London Hebrew Christian Alliance of Great Britain founded by Dr. Carl Schwartz in 1866.

The tragedy Sardanapalus by George Gordon Byron published in 1821 and produced in 1834 is set in Assyria, 640 B. C., under King Sardanapalus.

The translation, which was published anonymously in 1821, was previously attributed to George Soane.

Between 1821 and 1838 Pugin's father had published a series of volumes of architectural drawings, the first two entitled, Specimens of Gothic Architecture, and the following three, Examples of Gothic Architecture, that were to remain both in print and the standard references for Gothic architecture for at least the next century.

According to Story of Mayfield Through a Century, 1823-1923, published by D. Trabue Davis in 1923, Mayfield was established as the county seat of Graves County in 1821, and the county was formally organized in 1823.

Probably his most important work, published posthumously, is his Travels in New England and New York ( 4 vols., 1821 – 1822 ).

The poem was first published in Metrical Legends of Exalted Characters in 1821.

His compositions, of which very few have been published, were very favourable specimens of the severe ecclesiastical style ; one in particular, a ten-part Miserere, composed for Holy Week in 1821 by order of Pope Pius VII, has taken a permanent place in the services of the Sistine chapel during Passion Week.

In 1820 he visited Portugal, and there collected materials for his Essai statistique sur le royaume de Portugal et d ’ Algarve, published in 1822 at Paris, where the author resided from 1821 until 1832.

Some of the fruits of his researches were published in the Anecdota Graeca ( 3 vols, 1814 – 1821 ), but the major results are to be found in the enormous array of classical authors edited by him.

Georg Wilhelm Friedrich Hegel's Elements of the Philosophy of Right ( Grundlinien der Philosophie des Rechts ) was published in 1820, though the book's original title page dates it to 1821.

In 1821 appeared his first work, Sufismus, sive theosophia Persarum pantheistica ; following the same line of study he published Blütensammlung aus der morgenlandischen Mystik ( 1825 ) and Speculative Trinitätslehre des späteren Orients ( 1826 ).

Also, his Bemerkungen und Ansichten, published in an incomplete form in von Kotzebue's Entdeckungsreise ( Weimar, 1821 ) and more completely in Chamisso's Gesammelte Werke ( 1836 ), and the botanical work, Übersicht der nutzbarsten und schädlichsten Gewächse in Norddeutschland ( View of the Most Useful and the Most Noxious Plants of North Germany, with Remarks on Scientific Botany, 1829 ) are esteemed for their careful treatment of their subjects.