Important Historical Events of the year 1821, Year 1821 in History

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List of 1821 Major News Events in History, Most Important Historical Events in 1821

What happened in the year 1821?

Date	Event
February 24, 1821	Final stage of the Mexican War of Independence from Spain with Plan of Iguala.
March 21, 1821	Greek War of Independence: Greek revolutionaries seize Kalavryta.
March 23, 1821	Greek War of Independence: Battle and fall of city of Kalamata.
March 25, 1821	Greek War of Independence - Traditional date of the start of the Greek War of Independence. The war had actually begun on 23 February 1821 (Julian calendar).
April 10, 1821	Patriarch Gregory V of Constantinople is hanged by the Ottoman government from the main gate of the Patriarchate and his body is thrown into the Bosphorus.
April 10, 1821	Greek War of Independence: the island of Psara joins the Greek struggle for independence.
April 21, 1821	Benderli Ali Pasha arrives in Constantinople as the new Grand Vizier of the Ottoman Empire; he remains in power for only nine days before being sent into exile.
May 5, 1821	Emperor Napoleon dies in exile on the island of Saint Helena in the South Atlantic Ocean.
May 5, 1821	The first edition of The Manchester Guardian, now The Guardian, is published.
May 8, 1821	Greek War of Independence: The Greeks defeat the Turks at the Battle of Gravia Inn.
May 12, 1821	The first major battle of the Greek War of Independence against the Turks is fought in Valtetsi.
May 26, 1821	Establishment of the Peloponnesian Senate by the Greek rebels.
June 12, 1821	Badi VII, king of Sennar, surrenders his throne and realm to Isma'il Pasha, general of the Ottoman Empire, ending the existence of that Sudanese kingdom.
June 14, 1821	Badi VII, king of Sennar, surrenders his throne and realm to Ismail Pasha, general of the Ottoman Empire, bringing the 300 year old Sudanese kingdom to an end.
June 19, 1821	Decisive defeat of the Filiki Eteria by the Ottomans at Drăgășani (in Wallachia).
June 24, 1821	Battle of Carabobo: Decisive battle in the war of independence of Venezuela from Spain.
July 9, 1821	Four hundred and seventy prominent Cypriots including Archbishop Kyprianos are executed in response to Cypriot aid to the Greek War of Independence.
July 17, 1821	The Kingdom of Spain cedes the territory of Florida to the United States.
July 19, 1821	Coronation of George IV of the United Kingdom.
July 23, 1821	While the Mora Rebellion continues, Greeks capture Monemvasia Castle. Turkish troops and citizens are transferred to Asia Minor's coasts.
July 28, 1821	José de San Martín declares the independence of Peru from Spain.
August 4, 1821	The Saturday Evening Post is published for the first time as a weekly newspaper.
August 21, 1821	Jarvis Island is discovered by the crew of the ship, Eliza Frances.
August 24, 1821	The Treaty of Córdoba is signed in Córdoba, now in Veracruz, Mexico, concluding the Mexican War of Independence from Spain.
September 15, 1821	The Captaincy General of Guatemala declares independence from Spain.
September 23, 1821	Tripolitsa, Greece, is captured by Greek rebels during the Greek War of Independence.
September 27, 1821	The Army of the Three Guarantees triumphantly enters Mexico City, led by Agustín de Iturbide. The following day Mexico is declared independent.
September 28, 1821	The Declaration of Independence of the Mexican Empire is drafted. It will be made public on 13 October.
October 8, 1821	The Peruvian Navy is established during the War of Independence.
October 13, 1821	The Declaration of Independence of the Mexican Empire is publicly proclaimed.
November 10, 1821	Cry of Independence by Rufina Alfaro at La Villa de Los Santos, Panama setting into motion a revolt which led to Panama's independence from Spain and to it immediately becoming part of Colombia.
November 28, 1821	Panama Independence Day: Panama separates from Spain and joins Gran Colombia.
December 1, 1821	José Núñez de Cáceres wins the independence of the Dominican Republic from Spain and names the new territory the Republic of Spanish Haiti.