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Important Historical Events of the year 1812, Year 1812 in History

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List of 1812 Major News Events in History, Most Important Historical Events in 1812

What happened in the year 1812?

Date Event
January 10, 1812 The first steamboat on the Ohio River or the Mississippi River arrives in New Orleans, 82 days after departing from Pittsburgh.
February 7, 1812 The strongest in a series of earthquakes strikes New Madrid, Missouri.
February 11, 1812 Massachusetts governor Elbridge Gerry is accused of "gerrymandering" for the first time.
February 27, 1812 Argentine War of Independence: Manuel Belgrano raises the Flag of Argentina in the city of Rosario for the first time.
February 27, 1812 Poet Lord Byron gives his first address as a member of the House of Lords, in defense of Luddite violence against Industrialism in his home county of Nottinghamshire.
March 19, 1812 The Cortes of Cádiz promulgates the Spanish Constitution of 1812.
March 26, 1812 An earthquake devastates Caracas, Venezuela.
March 26, 1812 A political cartoon in the Boston Gazette coins the term "gerrymander" to describe oddly shaped electoral districts designed to help incumbents win reelection.
April 6, 1812 British forces under the command of the Duke of Wellington assault the fortress of Badajoz. This would be the turning point in the Peninsular War against Napoleon-led France.
April 8, 1812 Czar Alexander I, the Russian Emperor and the Grand Duke of Finland, officially announces the transfer of the status of the Finnish capital from Turku to Helsinki.[9]
April 30, 1812 The Territory of Orleans becomes the 18th U.S. state under the name Louisiana.
May 2, 1812 The Siege of Cuautla during the Mexican War of Independence ends with both sides claiming victory after Mexican rebels under José María Morelos y Pavón abandon the city after 72 days under siege by royalist Spanish troops under Félix María Calleja.
May 11, 1812 Prime Minister Spencer Perceval is assassinated by John Bellingham in the lobby of the British House of Commons.
May 16, 1812 Imperial Russia signs the Treaty of Bucharest, ending the Russo-Turkish War. The Ottoman Empire cedes Bessarabia to Russia.
May 18, 1812 John Bellingham is found guilty and sentenced to death by hanging for the assassination of British Prime Minister Spencer Perceval.
June 1, 1812 War of 1812: U.S. President James Madison asks the Congress to declare war on the United Kingdom.
June 4, 1812 Following Louisiana's admittance as a U.S. state, the Louisiana Territory is renamed the Missouri Territory.
June 18, 1812 The United States declaration of war upon the United Kingdom is signed by President James Madison, beginning the War of 1812.
June 23, 1812 War of 1812: Great Britain revokes the restrictions on American commerce, thus eliminating one of the chief reasons for going to war.
June 24, 1812 Napoleonic Wars: Napoleon's Grande Armée crosses the Neman river beginning the invasion of Russia.
July 12, 1812 The American Army of the Northwest briefly occupies the Upper Canadian settlement at what is now at Windsor, Ontario.
July 18, 1812 The Treaties of Orebro end both the Anglo-Russian and Anglo-Swedish Wars.
July 22, 1812 Napoleonic Wars: Peninsular War: Battle of Salamanca: British forces led by Arthur Wellesley (later the Duke of Wellington) defeat French troops near Salamanca, Spain.
August 11, 1812 Peninsular War: French troops engage British-Portuguese forces in the Battle of Majadahonda.
August 16, 1812 War of 1812: American General William Hull surrenders Fort Detroit without a fight to the British Army.
August 19, 1812 War of 1812: American frigate USS Constitution defeats the British frigate HMS Guerriere off the coast of Nova Scotia, Canada earning the nickname "Old Ironsides".
August 24, 1812 Peninsular War: A coalition of Spanish, British, and Portuguese forces succeed in lifting the two-and-a-half-year-long Siege of Cádiz.
September 3, 1812 Twenty-four settlers are killed in the Pigeon Roost Massacre in Indiana.
September 4, 1812 War of 1812: The Siege of Fort Harrison begins when the fort is set on fire.
September 5, 1812 War of 1812: The Siege of Fort Wayne begins when Chief Winamac's forces attack two soldiers returning from the fort's outhouses.
September 7, 1812 French invasion of Russia: The Battle of Borodino, the bloodiest battle of the Napoleonic Wars, is fought near Moscow and results in a French victory.
September 13, 1812 War of 1812: A supply wagon sent to relieve Fort Harrison is ambushed in the Attack at the Narrows.
September 14, 1812 Napoleonic Wars: The French Grande Armée enters Moscow. The Fire of Moscow begins as soon as Russian troops leave the city.
September 15, 1812 The Grande Armée under Napoleon reaches the Kremlin in Moscow.
September 15, 1812 War of 1812: A second supply train sent to relieve Fort Harrison is ambushed in the Attack at the Narrows.
September 18, 1812 The 1812 Fire of Moscow dies down after destroying more than three-quarters of the city. Napoleon returns from the Petrovsky Palace to the Moscow Kremlin, spared from the fire.
October 9, 1812 War of 1812: In a naval engagement on Lake Erie, American forces capture two British ships: HMS Detroit and HMS Caledonia.
October 13, 1812 War of 1812: Sir Isaac Brock's British and native forces repel an invasion of Canada by General Rensselaer's United States forces.
October 19, 1812 The French invasion of Russia fails when Napoleon begins his retreat from Moscow.
October 23, 1812 General Claude François de Malet begins a conspiracy to overthrow Napoleon, claiming that the Emperor died in the Russian campaign.
October 24, 1812 Napoleonic Wars: The Battle of Maloyaroslavets takes place near Moscow.
October 25, 1812 War of 1812: The American frigate, USS United States, commanded by Stephen Decatur, captures the British frigate HMS Macedonian.
November 3, 1812 Napoleon's armies are defeated at the Battle of Vyazma.
November 14, 1812 Napoleonic Wars: At the Battle of Smoliani, French Marshals Victor and Oudinot are defeated by the Russians under General Peter Wittgenstein.
November 18, 1812 Napoleonic Wars: The Battle of Krasnoi ends in French defeat, but Marshal of France Michel Ney's leadership leads to him becoming known as "the bravest of the brave".
November 26, 1812 The Battle of Berezina begins during Napoleon's retreat from Russia.
December 14, 1812 The French invasion of Russia comes to an end as the remnants of the Grande Armée are expelled from Russia.
December 17, 1812 War of 1812: U.S. forces attack a Lenape village in the Battle of the Mississinewa.
December 29, 1812 USS Constitution, under the command of Captain William Bainbridge, captures HMS Java off the coast of Brazil after a three-hour battle.