1830
calendar year

1830 (MDCCCXXX) was a common year starting on Friday of the Gregorian calendar and a common year starting on Wednesday of the Julian calendar, the 1830th year of the Common Era (CE) and Anno Domini (AD) designations, the 830th year of the 2nd millennium, the 30th year of the 19th century, and the 1st year of the 1830s decade. As of the start of 1830, the Gregorian calendar was 12 days ahead of the Julian calendar, which remained in localized use until 1923. It is known in European history as a rather tumultuous year with the Revolutions of 1830 in France, Belgium, Poland, Switzerland and Italy.
Events
January–March
January 11 – LaGrange College (later the University of North Alabama) begins operation, becoming the first publicly chartered college in Alabama.
January 12–27 – Webster–Hayne debate: In the United States Congress, Robert Y. Hayne of South Carolina debates against Daniel Webster of Massachusetts about the question of states' rights vs. federal authority.
February 3 – The London Protocol establishes the full independence and sovereignty of Greece from the Ottoman Empire, as the result of the Greek War of Independence.
February 5 – A fire destroys the Argyll Rooms in London, where the Philharmonic Society of London presents concerts, but firefighters are able to prevent its further spread by use of their new equipment, steam-powered fire engines.
March 26 – The Book of Mormon, subtitled "An Account Written by the Hand of Mormon, Upon Plates Taken from the Plates of Nephi", is first published, with E. B. Grandin printing the original edition in Palmyra, New York.
March 28 – The Java War ends with the capture of Prince Diponegoro during negotiations with Dutch commander Hendrik Merkus de Kock.
Begin with the source’s own compact description: “1830” is calendar year. The dossier treats that line as a proposition to test through calendar and year, not as a finished interpretation.
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The phrase “calendar year” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated May 2, 2026. The linked authority identifier is Q7576. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1830 and 1923.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. 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 “1830” 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.