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Title: 1820s  
Author: World Heritage Encyclopedia
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Subject: 1798, 20s, 1850, 1850s, 1852
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Millennium: 2nd millennium
Centuries: 18th century19th century20th century
Decades: 1790s 1800s 1810s1820s1830s 1840s 1850s
Years: 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829
Categories: BirthsDeathsArchitecture

The 1820s decade ran from January 1, 1820, to December 31, 1829.

Politics and wars


East Asia


Java War

The Java War (also known as the "Diponegoro War") was fought in Java between 1825 and 1830. It started as a rebellion led by Prince Diponegoro after the Dutch decided to build a road across a piece of his property that contained his parents' tomb.

The troops of Prince Diponegoro were very successful in the beginning, controlling the middle of Java and besieging Yogyakarta. Furthermore the Javanese population was supportive of Prince Diponegoro's cause, whereas the Dutch colonial authorities were initially very indecisive. As the Java war prolonged, Prince Diponegoro had difficulties in maintaining the numbers of his troops. Prince Diponegoro started a fierce guerrilla war and it was not until 1827 that the Dutch army gained the upper hand. The Dutch colonial army was able to fill its ranks with troops from Sulawesi, and later on from the Netherlands.

The rebellion finally ended in 1830, after Prince Diponegoro was tricked into entering Dutch custody near Magelang, believing he was there for negotiations for a possible cease-fire. It is estimated that 200,000[1] died over the course of the conflict, 8,000 being Dutch.[1]





  • 1824-1826: The First Anglo-Burmese War ended in a British victory, and by the Treaty of Yandabo, Burma lost territory previously conquered in Assam, Manipur, and Arakan.[5] The British also took possession of Tenasserim with the intention to use it as a bargaining chip in future negotiations with either Burma or Siam.[6]

Siam (Thailand)

  • 1824-1826 - Rattanakosin Kingdom (Siam): Rama II died in 1824 and was peacefully succeeded by his son Jessadabodindra (Rama III). In 1825 the British sent another mission to Bangkok led by East India Company emissary Henry Burney. They had by now annexed southern Burma and were thus Siam's neighbours to the west, and they were also extending their control over Malaya. The King was reluctant to give in to British demands, but his advisors warned him that Siam would meet the same fate as Burma unless the British were accommodated. In 1826, therefore, Siam concluded its first commercial treaty with a western power, the Burney Treaty. Under the treaty, Siam agreed to establish a uniform taxation system, to reduce taxes on foreign trade and to abolish some of the royal monopolies. As a result, Siam's trade increased rapidly, many more foreigners settled in Bangkok, and western cultural influences began to spread. The kingdom became wealthier and its army better armed.


Central Asia

South Asia

Western Asia


Eastern Europe

Northern Europe

Central Europe

Southern Europe

Greek War of Independence
October 20: Naval Battle of Navarino by Ambroise Louis Garneray

At the start of the decade, most of Filiki Eteria instigated several battles that, together with the blessing of a Greek flag and proclamation of uprising by Bishop Germanos of Patras on March 25, marked the beginning of the revolution.[9][10][11] The uprising successfully established a foothold in the Peloponnese, seizing Tripolitsa in September 1821, and had some success in Crete, Macedonia and Central Greece.

Between 1821 and 1824, first and second national assemblies were held, and the constitutions of 1822 and of 1823 were established. However, revolutionary activity was fragmented, resulting in the civil wars of 1824–1825. The Greek side withstood the Turkish attacks because, during this period, the Ottoman military campaigns were periodic and uncoordinated.

That changed when the Ottoman Sultan Mahmud II negotiated with Mehmet Ali of Egypt, who agreed to send his son Ibrahim Pasha to Greece with an army to suppress the revolt in return for territorial gain. Ibrahim landed in the Peloponnese in February 1825 and secured most of the peninsula by the end of 1825. He then helped break the siege of Missolonghi. Although Ibrahim was defeated in Mani, he had succeeded in suppressing most of the revolt in the Peloponnese and Athens had been retaken.

Following years of negotiation, three Great Powers, Russia, the United Kingdom and France had come to agree to the formation of an autonomous Greek state under Ottoman suzerainty, as stipulated in the Treaty of London. Ottoman refusal to accept these terms led to the Battle of Navarino, which effectively secured complete Greek independence. That year, the Third National Assembly at Troezen established the First Hellenic Republic. With the help of a French expeditionary force, the Greeks drove the Turks out of the Peloponnese and proceeded to the captured part of Central Greece by 1828. As a result of years of negotiation, Greece was finally recognized as an independent nation in May 1832.

Western Europe

United Kingdom

In the 1820s, the British government was formally headed by Lord Goderich (1827–1828), and Duke of Wellington (1828–1830). This decade was largely peaceful for Britain, with some foreign intervention. The British supported the Portuguese liberals in the Liberal Wars, and supported Greek rebels in the war for independence. During this time, London became the largest city of the world, taking the lead from Beijing.[12]

Domestic tensions ran high at the start of the decade, with the Peterloo Massacre (1819), the Cato Street Conspiracy (1820), and the Radical War (1820) in Scotland. However, by the end of the 1820s, many repressive laws were repealed. In 1822, Britain repealed the death penalty for over 100 crimes, and punishments such as drawing and quartering and flagellation fell out of use. Seditious Meetings Prevention Act (barring large assemblies) and the Combination Act (banning trade unions) were repealed in 1824. The Catholic Relief Act by Parliament of the United Kingdom granted a substantial measure of Catholic Emancipation in Britain and Ireland.[7]



Anthony Finley's 1827 map of Africa

North America


United States

John Melish map of the United States circa 1822

At the beginning of the 1820s, the United States stretched from the Atlantic Ocean through to (roughly) the western edge of the Mississippi basin, though Florida, Michigan, Wisconsin and all present-day states fully west of the Mississippi had yet to be granted statehood. Two states were admitted to the union during this decade: Maine in 1820, and Missouri in 1821. The Adams–Onís Treaty, signed in 1819 and ratified by Spain in 1821, ceded Florida to the United States, and established a boundary between New Spain and the United States.

Slavery was widespread throughout the southern United States. According to the 1820 U.S. Census, the slave population at that time was 1,538,000.[13] The Missouri Compromise of 1820 prohibited slavery in the former Louisiana Territory north of the parallel 36°30′ north except within the boundaries of the proposed state of Missouri. By the 1830 U.S. Census, the slave population had risen to 2,009,043.[13] With the coordination of the American Colonization Society, many freed African-Americans repatriated to Africa during this decade to the newly formed colony of Liberia.

The political mood at the start of the 1820s was referred to as the Era of Good Feelings, following the collapse of the Federalist party. James Monroe, the sitting U.S President since 1817, was re-elected in 1820, virtually unopposed. In 1823, Monroe introduced the Monroe Doctrine in the State of the Union Address, declaring that any European attempts to recolonize the Americas would be considered a hostile act towards the United States.

The feeling of unity during the Monroe administration was dispelled in the presidential election of 1824, which due to an Electoral College stalemate, was decided in the United States House of Representatives. John Quincy Adams was chosen as the sixth U.S. President, despite receiving only 30.9% of the popular vote to Andrew Jackson's 41.3%. This gave rise to Jacksonian Nationalism and the rise of the modern Democratic Party,[14] with Andrew Jackson elected in the 1828 election.


After ten years of civil war in Mexico (then called the "Viceroyalty of New Spain") and the death of two of its founders, by early 1820 the Mexican independence movement was stalemated and close to collapse. However, the Army of the Three Guarantees was formed under the command of Colonel Agustín de Iturbide with the support of patriots and loyalists to secure independence for Mexico and the protection of Roman Catholicism. Iturbide's army was joined by rebel forces from all over Mexico, and quickly gained control of Mexico. On August 24, 1821, representatives of the Spanish crown and Iturbide signed the Treaty of Córdoba, which recognized the Mexican Empire under the terms of the Plan of Iguala.

On September 27 the Army of the Three Guarantees entered Mexico City, and the following day Iturbide proclaimed the independence of the Mexican Empire. The newly formed Mexican congress eventually declared Iturbide emperor of Mexico on May 19, 1822. Later that year, Iturbide dissolved Congress and replaced it with a sympathetic junta. However, on March 19, 1823 Iturbide abdicated.

The First Federal Republic was established on October 4, 1824. In the new constitution, the republic took the name of United Mexican States, and was defined as a representative federal republic, with Catholicism as the official and unique religion.[15] Guadalupe Victoria was the first President of Mexico from 1824 until 1829.

After Manuel Gómez Pedraza won the election to succeed Victoria, Vicente Guerrero staged a coup d'état and took the presidency on April 1, 1829.[16] Guerrero was deposed in a rebellion under Vice-President Anastasio Bustamante in December 1829.


Central America

South America

La Batalla de Carabobo by Martín Tovar y Tovar, depicting the Battle of Carabobo, in which Simón Bolívar secured Venezuela's independence from Spain in 1821

Gran Colombia




Argentina-Brazil War




Pacific Islands

Economics and commerce

Slavery, serfdom and labor

Science and Technology

The oldest surviving photograph, Nicéphore Niépce, circa 1826






  • 1820: John Keats completes Ode on Melancholy, one in a series of his famous Odes.
  • 1820: John Clare 13 July 1793 - 20 May 1864 publishes Poems Descriptive of Rural life 1820
  • 1826: Felicia Hemans publishes Casabianca, a poem commemorating the sinking of a French ship called the Orient

during The Battle of the Nile in 1798.




A millinery shop in Paris, 1822

During the 1820s in European and European-influenced countries, fashionable women's clothing styles transitioned away from the classically-influenced "Empire"/"Regency" styles of ca. 1795–1820 (with their relatively unconfining empire silhouette) and re-adopted elements that had been characteristic of most of the 18th century (and were to be characteristic of the remainder of the 19th century), such as full skirts and clearly visible corseting of the natural waist.

The silhouette of men's fashion changed in similar ways: by the mid-1820s coats featured broad shoulders with puffed sleeves, a narrow waist, and full skirts. Trousers were worn for smart day wear, while breeches continued in use at court and in the country.



Disasters, natural events, and notable mishaps



World leaders


  1. ^ a b M.C. RicKlefs: A History of modern Indonesia since 1300, p. 117.
  2. ^,Laos,Cambodia1800-1950.html
  3. ^ Nordin Hussin (2007). Trade and Society in the Straits of Melaka: Dutch Melaka And English Penang, 1780-1830. NIAS Press. p. 188.  
  4. ^ Frank Athelstane Swettenham, Map to Illustrate the Siamese Question (1893) p. 62;
  5. ^ Lt. Gen. Sir Arthur P. Phayre (1967). History of Burma (Second ed.). London: Susil Gupta. pp. 236–247. 
  6. ^ D.G.E.Hall (1960). Burma. Hutchinson University Library. pp. 109–113. 
  7. ^ a b c d e Penguin Pocket On This Day. Penguin Reference Library. 2006.  
  8. ^ Woodhouse, A Story of Modern Greece, 'The Dark Age of Greece (1453-1800)', p. 113, Faber and Faber (1968)
  9. ^ "Greek Independence Day.". Retrieved 2009-09-09. The Greek revolt was precipitated on March 25, 1821, when Bishop Germanos of Patras raised the flag of revolution over the Monastery of Agia Lavra in the Peloponnese. The cry "Freedom or Death" became the motto of the revolution. The Greeks experienced early successes on the battlefield, including the capture of Athens in June 1822, but infighting ensued. 
  10. ^ Frazee, Charles A. (1969). The Orthodox Church and independent Greece, 1821-1852. CUP Archive. pp. 18–20.  
  11. ^ McManners, John (2001). The Oxford illustrated history of Christianity. Oxford University Press. pp. 521–524.  
  12. ^ [1]
  13. ^ a b Historic US Census data
  14. ^ Brown, 1966, p.22
  15. ^ Federal Constitution of the United Mexican States (1824)
  16. ^ Katz, William Loren. "The Majestic Life of President Vicente Ramon Guerrero". William Loren Katz. Retrieved 6 June 2010. 
  17. ^ British and foreign state papers
  18. ^ "Onderzoekers in actie: Peter van Dam De geschiedenis van de firma Van Houten Cacao" (in Dutch). Retrieved 2008-05-25. 
  19. ^ Awdry, Christopher (1990). Encyclopaedia of British Railway Companies. Wellingborough: Patrick Stephens Ltd.  
  20. ^ "Granite Railway". Britannica Online Encyclopedia. Retrieved 2008-05-19. 
  21. ^ "The First Railroad in America". Catskill Archive. Granite City B.P.O.E. - Quincy Lodge No. 943. 1924. Retrieved 2008-05-19. 
  22. ^ "Steamship Curaçao". Archived from the original on 24 December 2010. Retrieved 2011-02-02. 
  23. ^ a b "Icons, a portrait of England 1820-1840". Archived from the original on 22 September 2007. Retrieved 2007-09-12. 
  24. ^  
  25. ^ The boat
  26. ^ Richard Acland Armstrong (1881). The Modern review. J. Clarke & Co. pp. 152–. Retrieved 27 November 2011. 
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