March 29
day of the year
March 29 is the 88th day of the year (89th in leap years) in the Gregorian calendar; 277 days remain until the end of the year.
Events
Pre-1600
1139 – Pope Innocent II issues the bull Omne datum optimum in which he endorses the Knights Templar and approves the Templar Rule.
1430 – The Ottoman Empire under Murad II captures Thessalonica from the Republic of Venice.
1461 – Battle of Towton: Edward of York defeats Queen Margaret to become King Edward IV of England, bringing a temporary stop to the Wars of the Roses.
1549 – The city of Salvador, Bahia, the first capital of Brazil, is founded.
1601–1900
1632 – Treaty of Saint-Germain is signed returning Quebec to French control after the English had seized it in 1629.
1792 – King Gustav III of Sweden dies after being shot in the back at a midnight masquerade ball at Stockholm's Royal Opera 13 days earlier.
1806 – Construction is authorized of the Great National Pike, better known as the Cumberland Road, becoming the first United States federal highway.
1809 – King Gustav IV Adolf of Sweden abdicates after a coup d'état.
1809 – At the Diet of Porvoo, Finland's four Estates pledge allegiance to Alexander I of Russia, commencing the secession of the Grand Duchy of Finland from Sweden.
Begin with the source’s own compact description: “March 29” is day of the year. The dossier treats that line as a proposition to test through March and year, not as a finished interpretation.
Why this record matters
The phrase “day of the 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.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Aug 22, 2026. The linked authority identifier is Q2459. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1600, 1139, 1430 and 1461.
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 “March 29” 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.