1822
calendar year

1822 (MDCCCXXII) was a common year starting on Tuesday of the Gregorian calendar and a common year starting on Sunday of the Julian calendar, the 1822nd year of the Common Era (CE) and Anno Domini (AD) designations, the 822nd year of the 2nd millennium, the 22nd year of the 19th century, and the 3rd year of the 1820s decade. As of the start of 1822, the Gregorian calendar was 12 days ahead of the Julian calendar, which remained in localized use until 1923.
Events
January–March
January 1 – The Greek Constitution of 1822 is adopted by the First National Assembly at Epidaurus.
January 3 – The famous French explorer, Aimé Bonpland, is imprisoned in Paraguay on charges of espionage.
January 7 – The first freed slaves from the United States arrive on the west coast of Africa, founding Monrovia on April 25.
January 9 – The Portuguese prince Pedro I of Brazil decides to stay in Brazil against the orders of the Portugal's King João VI, beginning the Brazilian independence process.
January 13 – The design of the modern-day flag of Greece is adopted by the First National Assembly at Epidaurus, for their naval flag.
January 14 – Greek War of Independence: Acrocorinth is captured by Theodoros Kolokotronis and Demetrios Ypsilantis.
February 6 – The Chinese junk Tek Sing sinks in the South China Sea, drowning more than 1,800 people on board. The wreckage will not be located until 1999.
“1822” enters the record as calendar year. Crown Archives preserves that source wording while asking what calendar and year can confirm, complicate or overturn.
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“1822” is worth following because a concise public description often conceals a longer documentary argument. Here, calendar and year provides the most credible route into that argument.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Aug 1, 2026. The linked authority identifier is Q6983. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1822, 1923 and 1999.
A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “1822” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.