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Research dossier · General Reference

Christina Hammer

German boxer (born 1990)

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionAug 16, 2026
Entity authoritySource title only
Source-derived summary

Christina Hammer is a German boxer. As a professional, she has held multiple world championships in two weight classes, including the WBO female middleweight title from 2010 to 2019, becoming the youngest boxer to win a WBO world title; the WBC female middleweight title between 2016 and 2018; and the WBO female super-middleweight title in 2013. She also challenged once for the WBO female light-middleweight title in 2014 and once for the undisputed female middleweight championship against Claressa Shields in 2019.

Editorial summary

“Christina Hammer” enters the record as german boxer (born 1990). Crown Archives preserves that source wording while asking what Christina, Hammer and German can confirm, complicate or overturn.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current lead gives the account dated anchors—2010, 2019, 2016, 2018—that can be checked directly. The selected authority fields contribute no independent date. Its strongest next move is a source search built around Christina, Hammer and German.
Editorial analysis

Why this record matters

“Christina Hammer” is worth following because a concise public description often conceals a longer documentary argument. Here, Christina, Hammer and German provides the most credible route into that argument.

Evidence profile

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 16, 2026. The first chronological checks are 2010, 2019, 2016 and 2018.

Critical limits

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

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.

Best used for
  • Subject orientation
  • Search vocabulary
  • Locating named sources
Verify next

The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “Christina Hammer”, its source revision and the description used here.
  2. Expand the search: follow Christina Hammer primary sources, Christina Hammer archive and Christina research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Christina Hammer”?
  2. What terminology or title could unlock a more precise catalogue search?
  3. Which institution is responsible for the underlying evidence?
Subject index

Search terms from this dossier

Source & attribution

This entry incorporates text from “Christina Hammer” 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.