1821 (MDCCCXXI) was a common year starting on Monday of the Gregorian calendar and a common year starting on Saturday of the Julian calendar, the 1821st year of the Common Era (CE) and Anno Domini (AD) designations, the 821st year of the 2nd millennium, the 21st year of the 19th century, and the 2nd year of the 1820s decade.

Historical events from year 1821. Learn about 45 famous, scandalous and important events that happened in 1821 or search by date or keyword.

The Mexican War of Independence (Spanish: Guerra de Independencia de México, 16 September 1810 – 27 September 1821) was an armed conflict and political process resulting in Mexico 's independence from the Spanish Empire.

Events from the year 1821 in the United States. February 9 – The George Washington University is chartered as The Columbian College of the District of Columbia by President James Monroe. March 4 – James Monroe and Daniel D. Tompkins begin their second terms as President and Vice President of the United States.

1821. Discover what happened in this year with HISTORY’s summaries of major events, anniversaries, famous births and notable deaths.

1995年5月1日 · Together, on February 24, 1821, they proposed a blueprint for independence called the Plan de Iguala. The plan offered three guarantees— preservation of the Catholic Church 's status, the independence of Mexico as a constitutional monarchy, and equality of Spaniards and criollos.

2010年2月9日 · On August 24, 1821, O’Donojú signed the Treaty of Córdoba, thus ending New Spain’s dependence on Old Spain. In 1822, as no Bourbon monarch to rule Mexico had been found, Iturbide was proclaimed...

Mexico gains independence from Spain. 450,000 wounded pro-independence insurgent supporters, including civilians. Mexican War of Independence (1810-1821), was an armed conflict between the people of Mexico and Spanish colonial authorities, which started on …

When Mexico achieved its independence from Spain in 1821, it included most of the viceroyalty of New Spain, minus the Caribbean and the Philippines. It stretched from California and the present-day U.S. Southwest and encompassed all of Central America except Panama.

2022年12月9日 · On August 24, 1821, the Treaty of Cordoba was signed and granted Mexico formal independence from Spain, thus ending the Mexican War of Independence. A supporter of the monarchy system, Iturbide became the emperor of the First Mexican Empire after marching his army into Mexico City on September 27.