WHAT HAPPENED IN 1822.
Look what happened the 1822.

The Greek Constitution of 1822 is adopted by the First National Assembly at Epidaurus. (1. January 1822)

The Portuguese prince Pedro I of Brazil decides to stay in Brazil against the orders of the Portuguese King João VI, beginning the Brazilian independence process. (9. January 1822)

The design of the Greek flag is adopted by the First National Assembly at Epidaurus. (13. January 1822)

Greek War of Independence: Acrocorinth is captured by Theodoros Kolokotronis and Demetrios Ypsilantis. (14. January 1822)

Greek War of Independence: Demetrios Ypsilantis is elected president of the legislative assembly. (15. January 1822)

The first Swaminarayan temple in the world, Shri Swaminarayan Mandir, Ahmedabad, is inaugurated. (24. February 1822)

The Florida Territory is created in the United States. (30. March 1822)

The massacre of the population of the Greek island of Chios by soldiers of the Ottoman Empire following an attempted rebellion, depicted by the French artist Eugène Delacroix. (31. March 1822)

Greek War of Independence: The Turks capture the Greek town of Souli. (16. May 1822)

Battle of Pichincha: Antonio José de Sucre secures the independence of the Presidency of Quito. (24. May 1822)

116 people die in the Grue Church fire, the biggest fire disaster in Norway's history. (26. May 1822)

Alexis St. Martin is accidentally shot in the stomach, leading to William Beaumont's studies on digestion. (6. June 1822)

Charles Babbage proposes a difference engine in a paper to the Royal Astronomical Society entitled "Note on the application of machinery to the computation of astronomical and mathematical tables". (14. June 1822)

35 African American slaves are hanged in South Carolina, including Denmark Vesey, after being accused of organizing a slave rebellion. (2. July 1822)

Chippewas turn over a huge tract of land in Ontario to the United Kingdom. (8. July 1822)

José de San Martín arrives in Guayaquil, Ecuador, to meet with Simón Bolívar. (26. July 1822)

First day of the three-day Battle of Dervenakia, between the Ottoman Empire force led by Mahmud Dramali Pasha and the Greek Revolutionary force led by Theodoros Kolokotronis. (26. July 1822)

Dom Pedro I declares Brazil independent from Portugal on the shores of the Ipiranga Brook in São Paulo. (7. September 1822)

Jean-François Champollion announces that he has deciphered the Rosetta stone. (27. September 1822)

Peter I of Brazil is proclaimed the emperor of the Brazil. (12. October 1822)