January 21
day of the year
January 21 is the 21st day of the year in the Gregorian calendar; 344 days remain until the end of the year (345 in leap years).
Events
Pre-1600
763 – Following the Battle of Bakhamra between Alids and Abbasids near Kufa, the Alid rebellion ends with the death of Ibrahim, brother of Isa ibn Musa.
1525 – The Swiss Anabaptist Movement is founded when Conrad Grebel, Felix Manz, George Blaurock, and about a dozen others baptize each other in the home of Manz's mother in Zürich, breaking a thousand-year tradition of church-state union.
1535 – Following the Affair of the Placards, the French king leads an anti-Protestant procession through Paris.
1601–1900
1720 – Sweden and Prussia sign the Treaty of Stockholm.
1749 – The Teatro Filarmonico in Verona is destroyed by fire, as a result of a torch being left behind in the box of a nobleman after a performance. It is rebuilt in 1754.
1774 – Abdul Hamid I becomes Sultan of the Ottoman Empire and Caliph of Islam.
1789 – The first American novel, The Power of Sympathy or the Triumph of Nature Founded in Truth by William Hill Brown, is printed in Boston.
1793 – After being found guilty of treason by the French National Convention, Louis XVI of France is executed by guillotine.
“January 21” enters the record as day of the year. Crown Archives preserves that source wording while asking what January and year can confirm, complicate or overturn.
Why this record matters
“January 21” is worth following because a concise public description often conceals a longer documentary argument. Here, January 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 22, 2026. The linked authority identifier is Q2273. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1600, 1525, 1535 and 1601.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. 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.
How to read it
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Questions for further research
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This entry incorporates text from “January 21” 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.