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Bill de Blasio

109th Mayor of New York City from 2014 to 2022

Architectural plans, a scale model, maps and brass measuring instruments
Places and architectureInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionAug 11, 2026
Entity authorityQ4911497
Source-derived summary

Bill de Blasio (born Warren Wilhelm Jr., May 8, 1961) is an American former politician who served as the 110th mayor of New York City from 2014 to 2021. A member of the Democratic Party, he held the office of New York City Public Advocate from 2010 to 2013.

De Blasio was born in Manhattan and raised primarily in Cambridge, Massachusetts. He graduated from New York University and Columbia University before brief stints working as a campaign manager for Charles Rangel and Hillary Clinton. De Blasio started his career as an elected official on the New York City Council, representing the 39th district in Brooklyn from 2002 to 2009. After one term as public advocate, he was elected mayor of New York City in 2013. De Blasio was reelected mayor in 2017.

De Blasio called attention to what he described as stark economic inequality in New York City, which he described as a "tale of two cities" during his first campaign. He supported socially liberal and progressive policies. In his first term as mayor, he implemented a free universal pre-kindergarten program in the city.

Editorial summary

Begin with the source’s own compact description: “Bill de Blasio” is 109th Mayor of New York City from 2014 to 2022. The dossier treats that line as a proposition to test through Bill, Blasio and 109th, not as a finished interpretation.

Editorial reviewA valuable geographic starting point for tracing changing names, boundaries, uses and administrative responsibility. The current lead gives the account dated anchors—1961, 2014, 2021, 2010—that can be checked directly. The linked authority record independently contributes the date 1961-05-08. For this dossier, Bill, Blasio and 109th is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “109th Mayor of New York City from 2014 to 2022” 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.

Evidence profile

The strongest evidence will usually combine a dated visual record with documents produced by the authority responsible for the place. The source revision retrieved here is dated Aug 11, 2026. The linked authority identifier is Q4911497. VIAF identifies the subject as 305947798. The Library of Congress control number is no2014000156. 4 of 4 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1961, 2014, 2021 and 2010.

Critical limits

Architectural summaries often privilege surviving fabric and can understate demolished phases, contested use or displaced communities. 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

Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.

Best used for
  • Historic place names
  • Jurisdictional context
  • Routes into maps and plans
Verify next

Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.

Three-step research path

  1. Establish the record: confirm the title “Bill de Blasio”, its source revision and the description used here.
  2. Expand the search: follow Bill de Blasio primary sources, Bill de Blasio archive and Bill 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 “Bill de Blasio”?
  2. Which earlier names or jurisdictions may reveal additional records?
  3. Which authority defined the place, boundary or structure at the relevant date?
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Source & attribution

This entry incorporates text from Bill de Blasio” 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.