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1840s

Decade

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Through Europe, Reformism (historical) and United Kingdom

The decade was noted in Europe for featuring the largely unsuccessful revolutions of 1848, also known as the springtime of the peoples. Throughout the continent, bourgeois liberals and working-class radicals engaged in a series of revolts in favor of social reform. In the United Kingdom, this notably manifested itself through the Chartist movement, which sought universal suffrage and parliamentary reform. In France, the February Revolution led to the overthrow of the reigning House of Orléans by Louis-Napoleon Bonaparte. In 1848, the publication of the Communist Manifesto by Karl Marx would help lay the groundwork for the global socialist movement. Arguably the first major event of the decade was the signing of the Treaty of Waitangi in the United Tribes (modern-day New Zealand) between Māori rangatira and representatives of the British Crown, which began in February 1840. Due to the differences between the Māori and English versions of the texts, the British claimed Māori had ceded sovereignty and proclaimed a new Colony, leading to more than 25 years of asymmetric armed conflict until the Colony secured substantive control.

The Mexican–American War led to the redrawing of national boundaries in North America. In the United States, mass migration to the new West Coast occurred, following the annexation of California from Mexico with the Treaty of Guadalupe Hidalgo, and the California Gold Rush beginning, following the discovery of gold there, both in early 1848. On its northern border, the United States settled the Oregon boundary dispute with the United Kingdom in 1846, thereby solving a domestic political crisis in the former nation. Meanwhile in Ireland, the Great Famine began in 1845, causing the deaths of one million Irish people and forcing over a million more to emigrate. In 1848, the women's rights movement began with the Seneca Falls Convention in New York.

The last living person from this decade was Robert Early, who died in 1960.

Politics and wars

Pacific Islands

In 1842, Tahiti and Tahuata were declared a French protectorate, to allow Catholic missionaries to work undisturbed. The capital of Papeetē was founded in 1843. In 1845, George Tupou I united Tonga into a kingdom, and reigned as Tuʻi Kanokupolu.

East Asia

China

On August 29, 1842, the first of two Opium Wars ended between China and Britain with the Treaty of Nanking, signed by Keying and Yilibu on behalf of the Daoguang Emperor, and Henry Pottinger on behalf of Queen Victoria. The treaty was based on the 1841 Convention of Chuenpi signed by Qishan and Charles Elliot. One of the consequences was the cession of modern-day Hong Kong Island to the British. Hong Kong would eventually be returned to China in 1997.

On July 3, 1844 the United States signed the Treaty of Wanghia with the Qing Empire. The treaty established five U.S. treaty ports in China with extraterritoriality and was the first unequal treaty that the United States imposed on the dynasty.

Japan

The 1840s comprised the end of the Tenpō era (1830–1844), the entirety of the Kōka era (1844–1848), and the beginning of the Kaei era (1848–1854). The decade saw the end of the reign of Emperor Ninko in 1846, who was succeeded by his son, Emperor Kōmei.

Southeastern Asia

Siam and Vietnam

The Siamese-Vietnamese War (1841–1845) in Cambodia erupted between Vietnam (then under the rule of the Nguyễn dynasty) and Siam (under the House of Chakri). In the increasingly confrontational rivalry between Vietnam and Siam, the conflict was triggered by Vietnam's absorption of Cambodia and the demotion of the Khmer monarchs. Siam under Rama III seized the opportunity to intervene as the tide of Khmer discontent rose against Vietnamese rule.

Emperors Minh Mạng, Thiệu Trị and Tự Đức ruled Vietnam during the 1840s under the Nguyễn dynasty.

New Guinea

Australia and New Zealand

  • First signing of the Treaty of Waitangi on 6 February 1840, at Waitangi, United Tribes of New Zealand (modern-day Northland Region, New Zealand), between Māori rangatira (chiefs and rulers) and representatives of the British Crown. The treaty between is considered the founding point of modern New Zealand. There were substantial differences between the Māori and English versions of the text, with the vast majority of rangatira signing the Māori version. Perhaps the most prominent was that the Māori version (Te Tiriti o Waitangi) gave Queen Victoria 'kāwanatanga', a transliteration of the English word 'governorship', whereas the British version said Māori who signed the Treaty were ceding sovereignty. Other notable differences included a right of pre-emption clause in the English version, but not in the Māori version. In the Māori version of the Treaty, the use of the words 'kawanatanga' and 'tino rangatiratanga' (meaning 'absolute sovereignty') contributed to later differences of view between the Crown and Māori over how much authority rangatira would retain. The British subsequently declared they had sovereignty over the islands in May, and later proclaimed the Colony of New Zealand in 1841, despite Māori retaining de facto substantive sovereignty. This would lead to the New Zealand Wars between Māori and the British.
  • July 20, 1845 – Charles Sturt enters the Simpson Desert in central Australia.
  • May 25, 1846 – The Royal Geographical Society awards Paweł Edmund Strzelecki a Founder's Medal "for exploration in the south eastern portion of Australia".
  • June 15, 1846 – Launceston Church Grammar School opens for the first time in Tasmania.

Southern Asia

Afghanistan

The First Anglo-Afghan War had started in 1838, started by the British as a means of defending India (under British control at the time) from the Russian Empire's expansion into Central Asia. The British attempted to impose a puppet regime on Afghanistan under Shuja Shah, but the regime was short lived and proved unsustainable without British military support. By 1842, mobs were attacking the British on the streets of Kabul and the British garrison was forced to abandon the city due to constant civilian attacks. During the retreat from Kabul, the British army of approximately 4,500 troops (of which only 690 were European) and 12,000 camp followers was subjected to a series of attacks by Afghan warriors. All of the British soldiers were killed except for one and he and a few surviving Indian soldiers made it to the fort at Jalalabad shortly after. After the Battle of Kabul (1842), Britain placed Dost Mohammad Khan back into power (1842–1863) and withdrew from Afghanistan.

India

Sikh Empire

The Sikh Empire was founded in 1799, ruled by Ranjit Singh. When Singh died in 1839, the Sikh Empire began to fall into disorder. There was a succession of short-lived rulers at the central Durbar (court), and increasing tension between the Khalsa (the Sikh Army) and the Durbar. In May 1841, the Dogra dynasty (a vassal of the Sikh Empire) invaded western Tibet, marking the beginning of the Sino-Sikh war. This war ended in a stalemate in September 1842, with the Treaty of Chushul.

The British East India Company began to build up its military strength on the borders of the Punjab. Eventually, the increasing tension goaded the Khalsa to invade British territory, under weak and possibly treacherous leaders. The hard-fought First Anglo-Sikh War (1845–1846) ended in defeat for the Khalsa. With the Treaty of Lahore, the Sikh Empire ceded Kashmir to the East India Company and surrendered the Koh-i-Noor diamond to Queen Victoria.

The Sikh empire was finally dissolved at the end of the Second Anglo-Sikh War in 1849 into separate princely states and the British province of Punjab. Eventually, a Lieutenant Governorship was formed in Lahore as a direct representative of the British Crown.

Sri Lanka

Western Asia

Ottoman Empire

The decade was near the beginning of the Tanzimât Era of the Ottoman Empire. Sultan Abdülmecid I ruled during this period.

Lebanon

Emir Bashir Shihab II controlled the Mount Lebanon Emirate at the beginning of the 1840s. Bashir allied with Muhammad Ali of Egypt, but Muhammad Ali was driven out of the country. Bashir was deposed in 1840 when the Egyptians were driven out by an Ottoman-European alliance, which had the backing of Maronite forces. His successor, Emir Bashir III, ruled until 1842, after which the emirate was dissolved and split into a Druze sector and a Christian sector.

Romania

  • June 21, 1848 – Wallachian Revolution of 1848: The Proclamation of Islaz is made public and a Romanian revolutionary government led by Ion Heliade Rădulescu and Christian Tell is created.

Persian Empire (Iran)

Revolutions of 1848

There was a wave of revolutions in Europe, collectively known as the Revolutions of 1848. It remains the most widespread revolutionary wave in European history, but within a year, reactionary forces had regained control, and the revolutions collapsed.

The revolutions were essentially bourgeois-democratic in nature with the aim of removing the old feudal structures and the creation of independent national states. The revolutionary wave began in France in February, and immediately spread to most of Europe and parts of Latin America. Over 50 countries were affected, but with no coordination or cooperation among the revolutionaries in different countries. Six factors were involved: widespread dissatisfaction with political leadership; demands for more participation in government and democracy; demands for freedom of press; the demands of the working classes; the upsurge of nationalism; and finally, the regrouping of the reactionary forces based on the royalty, the aristocracy, the army, and the peasants.

The uprisings were led by ad hoc coalitions of reformers, the middle classes and workers, which did not hold together for long. Tens of thousands of people were killed, and many more forced into exile. The only significant lasting reforms were the abolition of serfdom in Austria and Hungary, the end of absolute monarchy in Denmark, and the definitive end of the Capetian monarchy in France. The revolutions were most important in France, the Netherlands, Germany, Poland, Italy, and the Austrian Empire, but did not reach Russia, Sweden, Great Britain, and most of southern Europe (Spain, Serbia, Greece, Montenegro, Portugal, the Ottoman Empire).

Eastern Europe

Russia

  • May 22, 1841 – The Georgian province of Guria revolts against the Russian Empire.
  • 1848 – Admiral Nevelskoi explores the Strait of Tartary.
  • November 16, 1849 – A Russian court sentences Fyodor Dostoevsky to death for anti-government activities linked to a radical intellectual group, the Petrashevsky Circle. Facing a firing squad on December 23 the group members are reprieved at the last moment and exiled to the katorga prison camps in Siberia.

Austrian Empire

  • June 2 – 12, 1848 – Prague Slavic Congress brings together members of the Pan-Slavism movement.

Hungary

Galicia

  • February 18, 1846 – Beginning of the Galician peasant revolt.

Northern Europe

Sweden

Denmark

United Kingdom

  • September 16, 1840 – Joseph Strutt hands over the deeds and papers concerning the Derby Arboretum, which is to become England's first public park.
  • August 10, 1842 – The Mines Act 1842 becomes law, prohibiting underground work for all women and boys under 10 years old in England.
  • March 25, 1843 – Marc Isambard Brunel's Thames Tunnel, the first tunnel under the River Thames and the world's first bored underwater tunnel, is opened in London.
  • May 4, 1843 – Natal is proclaimed a British colony.
  • April – The Fleet Prison for debtors in London is closed.
  • July, 1848 – Public Health Act establishes Boards of Health across England and Wales, the nation's first public health law, giving cities broad authority to build modern sanitary systems.

Royalty

Queen Victoria was on the throne 20 June 1837 until her death 22 January, 1901. The wedding of Queen Victoria and Prince Albert of Saxe-Coburg and Gotha took place in 1840.

Ireland

The Great Famine of the 1840s caused the deaths of one million Irish people and over a million more emigrated to escape it. It is sometimes referred to, mostly outside Ireland, as the "Irish Potato Famine" because one-third of the population was then solely reliant on this cheap crop for a number of historical reasons. The proximate cause of famine was a potato disease commonly known as potato blight. A census taken in 1841 revealed a population of slightly over 8 million. A census immediately after the famine in 1851 counted 6,552,385, a drop of almost 1.5 million in 10 years.

The period of the potato blight in Ireland from 1845 to 1851 was full of political confrontation. A more radical Young Ireland group seceded from the Repeal movement and attempted an armed rebellion in the Young Irelander Rebellion of 1848, which was unsuccessful.

Western Europe

Germany

Switzerland

  • November 3 – 29, 1847 – Sonderbund War, a civil war in Switzerland in which General Guillaume-Henri Dufour's federal army defeats the Sonderbund (an alliance of seven Catholic cantons) with a total of only 86 deaths.

The Netherlands

France

Southern Europe

Greece

  • September 3, 1843 – Popular uprising in Athens, Greece, including citizens and military captains, to require from King Otto the issue of a liberal Constitution to the state, which has been governed since independence (1830) by various domestic and foreign business interests.

Italian Peninsula

Spain

This period saw the 1840 end of the First Carlist War, a civil war in Spain over the succession to the throne and the nature of the Spanish monarchy. This was the first full decade of the reign of Isabella II of Spain. Since she was only 10 years old in 1840, her true reign started in 1843, for which the first portion was referred to as Década moderada. The Affair of the Spanish Marriages (1846) was a series of intrigues between France, Spain, and the United Kingdom relating Isabella II's marriages, which was shortly followed by Second Carlist War (1847–1849).

Portugal

  • May 16, 1846 – Revolutionary insurrection in Portugal (crushed by royalist troops on February 22, 1847)

Africa

  • December 7, 1840 – David Livingstone leaves Britain for Africa.
  • August 10, 1845 – The French Consul in Zanzibar (M. Broquant) receives the final letter sent by Eugène Maizan during his expedition into tropical Africa.
  • December 20, 1848 – Slavery is abolished on the island of Réunion.

Algeria

  • December 21, 1847 – Abd al-Kader surrenders and is imprisoned by the French.

Ethiopia

  • February 7, 1842 – Battle of Debre Tabor: Ras Ali Alula, Regent of the Emperor of Ethiopia, defeats warlord Wube Haile Maryam of Semien.

South Africa

  • June 4, 1842 – In South Africa, hunter Dick King rides into a British military base in Grahamstown to warn that the Boers have besieged Durban (he had left 11 days earlier). The British army dispatches a relief force.
  • December 13, 1843 – Basutoland becomes a British protectorate.

Morocco

Liberia

North America

Canada

In the prior decade, the desire for responsible government resulted in the abortive Rebellions of 1837–1838. The Durham Report subsequently recommended responsible government and the assimilation of French Canadians into English culture. The Act of Union 1840 merged the Canadas into a united Province of Canada and responsible government was established for all British North American provinces by 1849. The signing of the Oregon Treaty by Britain and the United States in 1846 ended the Oregon boundary dispute, extending the border westward along the 49th parallel. This paved the way for British colonies on Vancouver Island (1849) and in British Columbia (1858).

  • March 11, 1848 – Louis-Hippolyte Lafontaine and Robert Baldwin became the first Joint Premiers of the Province of Canada to be democratically elected under a system of responsible government.
  • April 25, 1849 – James Bruce, 8th Earl of Elgin, the Governor General of Canada, signs the Rebellion Losses Bill, outraging Montreal's English population and triggering the Montreal Riots.

United States

  • January 18, 1840 – The Electro-Magnetic and Mechanics Intelligencer used electricity for power of the press to print it.
  • February 18, 1841 – The first ongoing filibuster in the United States Senate begins and lasts until March 11.
  • August 16, 1841 – U.S. President John Tyler vetoes a bill which called for the re-establishment of the Second Bank of the United States. Enraged Whig Party members riot outside the White House in the most violent demonstration on White House grounds in U.S. history.
  • March – Commonwealth v. Hunt: the Massachusetts Supreme Court makes strikes and unions legal in the United States.
  • May 19, 1842 – Dorr Rebellion: Militiamen supporting Thomas Wilson Dorr attack the arsenal in Providence, Rhode Island, but are repulsed.
  • January 23, 1845 – The United States Congress establishes a uniform date for federal elections, which will henceforth be held on the first Tuesday after the first Monday in November.
  • March 4, 1845 – The United States Congress passes legislation overriding a presidential veto for the first time.
  • February 26, 1846 – The Liberty Bell is cracked while being rung for George Washington's birthday.
  • March 1, 1847 – The state of Michigan formally abolishes the death penalty.
  • March 4, 1847 – The 30th United States Congress is sworn into office.

Slavery

Settlement

Native Americans

Chief Joseph of the Nez Perce was predicted to have been born in the 1840s.

Presidents

The United States had five different Presidents during the decade. Only the 1880s would have as many. Martin Van Buren was president when the decade began, but was defeated by William Henry Harrison in the U.S. presidential election of 1840. Harrison's service was the shortest in history, starting with his inauguration on March 4, 1841, and ending when he died on April 4, 1841.

Harrison's vice president, John Tyler, replaced him as President (the first such Presidential succession in U.S. history), and served out the rest of his term. Tyler spent much of his term in conflict with the Whig party. He ended his term having made an alliance with the Democrats, endorsing James K. Polk and signing the resolution to annex Texas into the United States.

In the Presidential election of 1844, James K. Polk defeated Henry Clay. During his presidency, Polk oversaw the U.S. victory in the Mexican–American War and subsequent annexation of what is now the southwest United States. He also negotiated a split of the Oregon Territory with Great Britain.

In the U.S. presidential election of 1848, Whig Zachary Taylor of Louisiana defeated Democrat Lewis Cass of Michigan. Taylor's term in office was cut short by his death in 1850.

California

In the first part of the 1840s, the modern state of California was part of a larger province of Mexico, called "Alta California". The region included all of the modern American states of California, Nevada and Utah, and parts of Arizona, Wyoming, Colorado and New Mexico.

The United States, embarked on the Conquest of California in an early military campaign of the Mexican–American War in Alta California. The California Campaign was marked by a series of small battles throughout 1846 and early 1847. The Treaty of Cahuenga was signed on January 13, 1847, and essentially terminated hostilities in Alta California. Shortly thereafter, John C. Frémont was appointed Governor of the new California Territory, and Yerba Buena, California, was renamed San Francisco.

The Treaty of Guadalupe Hidalgo, signed in February 1848, marked the end of the Mexican–American War. By the terms of the treaty, Mexico formally ceded Alta California along with its other northern territories east through Texas, receiving $15,000,000 in exchange. This largely unsettled territory constituted nearly half of its claimed territory with about 1% of its then population of about 4,500,000.

The discovery of gold in Northern California (and subsequent discourse about that discovery in 1848) led to the California Gold Rush. In October 1848, the SS California left New York Harbor, rounded Cape Horn at the tip of South America, and arrived in San Francisco after the 4-month-21-day journey. Thereafter, regular steamboat service continued from the west to the east coast of the United States. During 1848, only an estimated 6,000 to 6,500 people traveled to California to seek gold that year. By the beginning of 1849, word of the Gold Rush had spread around the world, and an overwhelming number of gold-seekers and merchants began to arrive from virtually every continent. In 1849, an estimated 90,000 people arrived in California in 1849—of which 50,000 to 60,000 were from the United States. In 1850, California joined the union as the 31st state.

Texas

The Republic of Texas had declared independence in 1836, as part of breaking away from Mexico in the Texas Revolution. The following year, an ambassador from Texas approached the United States about the possibility of becoming an American state. Fearing a war with Mexico, which did not recognize Texas independence, the United States declined the offer.

In 1844, James K. Polk was elected the United States president after promising to annex Texas. Before he assumed office, the outgoing president, John Tyler, entered negotiations with Texas. On February 26, 1845, six days before Polk took office, the U.S. Congress approved the annexation. The Texas legislature approved annexation in July 1845 and constructed a state constitution. In October, Texas residents approved the annexation and the new constitution, and Texas was officially inducted into the United States on December 29, 1845, as the 28th U.S. state. Mexico still considered Texas to be a renegade Mexican state, and never considered land south of the Nueces River to be part of Texas. This border dispute between the newly expanded United States and Mexico triggered the Mexican–American War.

When the war concluded, Mexico relinquished its claim on Texas, as well as other regions in what is now the southwestern United States. Texas' annexation as a state that tolerated slavery had caused tension in the United States among slave states and those that did not allow slavery. The tension was partially defused with the Compromise of 1850, in which Texas ceded some of its territory to the federal government to become non-slave-owning areas but gained El Paso.

Mexican–American War

American territorial expansion to the Pacific coast was a major goal of U.S. President James K. Polk. In 1845, the United States of America annexed Texas, which had won independence from Centralist Republic of Mexico in the Texas Revolution of 1836. Mexico did not accept the annexation, while also continuing to claim the Nueces River as its border with Texas, and also still considering Texas to be a province of Mexico. In 1845, newly elected U.S. President James K. Polk sent troops to the disputed area, and a diplomatic mission to Mexico. After Mexican forces attacked American forces, the U.S. declared the Mexican–American War (1846–1848).

Combat operations lasted a year and a half, from the spring of 1846 to the fall of 1847. U.S. forces quickly occupied the capital town of Santa Fe de Nuevo México along the upper Rio Grande and began the Conquest of California in Mexico's Alta California Department. They then invaded to the south into parts of central Mexico (modern-day northeastern Mexico and northwest Mexico). Meanwhile, the Pacific Squadron of the United States Navy conducted a blockade and took control of several garrisons on the Pacific coast farther south in lower Baja California Territory. The U.S. Army eventually captured the capital Mexico City, having marched west from the port of Veracruz, where the Americans staged their first amphibious landing on the Gulf of Mexico coast.

The 1848 Treaty of Guadalupe Hidalgo, forced onto the remnant Mexican government, ended the war and specified its major consequence, the Mexican Cession of the northern territories of Alta California and Santa Fe de Nuevo México to the United States. The U.S. agreed to pay $15 million compensation for the physical damage of the war. In addition, the United States assumed $3.25 million of debt already owed earlier by the Mexican government to U.S. citizens. Mexico acknowledged the loss of their province, later the Republic of Texas (and now the State of Texas), and thereafter cited and acknowledged the Rio Grande as its future northern national border with the United States. Including Texas, Mexico ceded an area of approximately 2,500,000 square kilometres (970,000 sq mi) – by its terms, around 55% of its former national territory.

Mexico

The 1840s for Mexico were the end of the centralist government and the waning years the "Age of Santa Anna". In 1834, President Antonio López de Santa Anna dissolved Congress, forming a new government. That government instituted the new Centralist Republic of Mexico by approving a new centralist constitution ("Siete Leyes"), From its formation in 1835 until its dissolution in 1846, the Centralist Republic was governed by eleven presidents (none of which finished their term). It called for the state militias to disarm, but many states resisted, including Mexican Texas, which won its independence in the Texas Revolution of 1836.

The Republic of the Rio Grande declared its independence from Mexico in January 1840. However, the border with Texas was never determined (whether the Nueces River or the Rio Grande). The new Republic fought a brief and unsuccessful war for independence, returning to Mexico late in the year.

In 1841, Generals Santa Anna and Paredes led a rebellion against President Bustamante, resulting in Santa Anna becoming president of the centralist government for a fifth time. Local officials in Yucatán declared independence in 1841, opposing strong autocratic rule and demanding the restoration of the Constitution of 1824, thus establishing the second Republic of Yucatán.

In 1842, the region of Soconusco was annexed by Mexico as part of the state of Chiapas, following the dissolution of the Federal Republic of Central America.

In 1846, President Paredes and the Congress of Mexico declared war at the beginning of the Mexican–American War. Paredes' presidential successor was deposed in a coup, replaced by José Mariano Salas. Salas issued a new decree that restored the Constitution of 1824, ending the Centralist Republic and beginning the Second Federal Republic of Mexico. After the conclusion of the Mexican–American War, José Joaquín de Herrera became the second president of Mexico to finish his term (Mexico's first president completed his in 1829). It was during this time that Yucatán reunited with Mexico. A decisive factor for the reunion was the Caste War of Yucatán (a revolt by the indigenous Maya population) for which Yucatán initially sought help from Spain, the United Kingdom, and the United States, but ultimately reunited with Mexico for help.

Herrera peacefully turned over the presidency to the winner of the Federal Elections of 1850, General Mariano Arista. Despite being exiled from Mexico in 1848, Santa Anna would return to the presidency one last time during the 1850s.

El Salvador

Caribbean

Barbados

  • June 6, 1843 – In Barbados, Samuel Jackman Prescod is the first non-white person elected to the House of Assembly.

Dominican Republic

Haiti

Trinidad

  • May 30, 1845 – Fatel Razack (Fath Al Razack, "Victory of Allah the Provider", Arabic: قتح الرزاق) is the first ship to bring indentured labourers from India to Trinidad, landing in the Gulf of Paria with 227 immigrants.

South America

Brazil

  • July 23, 1840 – Pedro II is declared "of age" prematurely and begins to reassert central control in Brazil.
  • July 18, 1841 – Coronation ceremony of Emperor Pedro II of Brazil in Rio de Janeiro.
  • January 20, 1843 – Honório Hermeto Carneiro Leão, Marquis of Paraná, becomes de facto first prime minister of the Empire of Brazil.
  • September 4, 1843 – The Emperor Dom Pedro II of Brazil marries Dona Teresa Cristina of the Two Sicilies in a state ceremony in Rio de Janeiro Cathedral.

Uruguay

Paraguay

Argentina

  • September 18, 1845 – Anglo-French blockade of the Río de la Plata formally declared.
  • November 20, 1845 – Anglo-French blockade of the Río de la Plata: Battle of Vuelta de Obligado: The Argentine Confederation is narrowly defeated by an Anglo-French fleet on the waters of the Paraná River but Argentina attracts political support in South America.

Venezuela

Peru

Chile

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