20
Wikimedia disambiguation page
Twenty or 20 may refer to:
20 (number), the natural number following 19 and preceding 21
one of the years 20 BC, AD 20, 1920, 2020
Science
Calcium, an alkaline earth metal in the periodic table found in bones and teeth
20 Massalia, an asteroid in the asteroid belt
Music
Albums
20 (2nd Chapter of Acts album), 1992
20 (Cunter album), 2011
20 (Dragana Mirković album), 2012
20 (Harry Connick, Jr.
Begin with the source’s own compact description: “20” is wikimedia disambiguation page. The dossier treats that line as a proposition to test through Wikimedia, disambiguation and page, not as a finished interpretation.
Why this record matters
The phrase “wikimedia disambiguation page” 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 Jul 21, 2026. The linked authority identifier is Q1166637. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1920, 2020, 1992 and 2011.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
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Three-step research path
- Establish the record: confirm the title “20”, its source revision and the description used here.
- Expand the search: follow 20 primary sources, 20 archive and Wikimedia research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
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This entry incorporates text from “20” 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.