February 17
day of the year
February 17 is the 48th day of the year in the Gregorian calendar; 317 days remain until the end of the year (318 in leap years).
Events
Pre-1600
1370 – Northern Crusades: Grand Duchy of Lithuania and the Teutonic Knights meet in the Battle of Rudau.
1411 – Following the successful campaigns during the Ottoman Interregnum, Musa Çelebi, one of the sons of Bayezid I, becomes Sultan of the Ottoman Empire with the support of Mircea I of Wallachia.
1500 – Duke Frederick of Schleswig-Holstein and King John of Denmark attempt to subdue the peasantry of Dithmarschen, Denmark, in the Battle of Hemmingstedt.
1600 – On his way to be burned at the stake for heresy, at Campo de' Fiori in Rome, the philosopher Giordano Bruno has a wooden vise put on his tongue to prevent him continuing to speak.
1601–1900
1616 – Nurhaci proclaims himself Khan of the Later Jin, precursor to the Qing Dynasty.
1621 – Myles Standish is appointed as first military commander of the English Plymouth Colony in North America.
1674 – An earthquake strikes the Indonesian island of Ambon. It triggers a 100 m (330 ft) megatsunami which drowns over 2,300 people.
1676 – Sixteen men of Pascual de Iriate's expedition are lost at Evangelistas Islets at the western end of the Strait of Magellan.
Begin with the source’s own compact description: “February 17” is day of the year. The dossier treats that line as a proposition to test through February and year, not as a finished interpretation.
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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.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Aug 22, 2026. The linked authority identifier is Q2341. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1600, 1370, 1411 and 1500.
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 “February 17” 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.