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Research dossier · Places & Architecture

Baseline League

high school athletic conference in San Bernardino County, California

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 revisionJan 21, 2025
Entity authorityQ17985754 ↗
Source-derived summary

The Baseline League is a high school athletic conference that is part of the CIF Southern Section. Members are located in San Bernardino County, with Damien and St. Lucy's located in Los Angeles County. The Baseline League was formed in 1979, with original members Claremont High School, Glendora High School, Pomona High School, Chaffey High School, Damien High School, St. Lucy's Priory High School, Pomona Catholic Girl's High School, and Upland High School.

Members

Chino Hills High School

Damien High School (all-boys school)

Etiwanda High School

Los Osos High School

Rancho Cucamonga High School

St.

Editorial summary

This brief starts where responsible research should: with the source description of “Baseline League” as high school athletic conference in San Bernardino County, California. Everything that follows is an evidence route, not borrowed authority.

Editorial reviewMost useful as a place-based finding aid connecting the present description to earlier jurisdictions, maps and built evidence. The current lead gives the account dated anchors—1979—that can be checked directly. The selected authority fields contribute no independent date. The account is most persuasive where Baseline, League and high can be independently traced.
Editorial analysis

Why this record matters

The subject matters to the places & architecture register because the source frames it as high school athletic conference in San Bernardino County, California. Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

Maps, plans, fabric surveys and administrative records can establish how the site’s name, extent and function changed over time. The source revision retrieved here is dated Jan 21, 2025. The linked authority identifier is Q17985754. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1979.

Critical limits

A single description cannot reconcile every naming convention, rebuilding phase or administrative transfer associated with a place. 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

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 “Baseline League”, its source revision and the description used here.
  2. Expand the search: follow Baseline League primary sources, Baseline League archive and Baseline 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 “Baseline League”?
  2. Which authority defined the place, boundary or structure at the relevant date?
  3. What physical evidence or contemporary plan supports the description?
Subject index

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Source & attribution

This entry incorporates text from “Baseline League” 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.