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Historical Marker Database

website documenting Historical Markers around the world
WebSite website Q21815238
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Historical Marker Database

Summary

Historical Marker Database is a website[1]. It ranks in the top 8% of website entities by monthly Wikipedia readership (23 views/month).[2]

Key Facts

  • Historical Marker Database's instance of is recorded as website[3].
  • Historical Marker Database's official website is recorded as https://hmdb.org[4].
  • Historical Marker Database's main subject is recorded as commemorative plaque[5].
  • Historical Marker Database's main Wikidata property is recorded as P7883[6].
  • Historical Marker Database's different from is recorded as Human Metabolome Database[7].
  • Historical Marker Database's Google Knowledge Graph ID is recorded as /g/11j01fg1bv[8].
  • Historical Marker Database's Bluesky handle is recorded as hmdb.org[9].

Why It Matters

Historical Marker Database ranks in the top 8% of website entities by monthly Wikipedia readership (23 views/month).[2] It is known by 5 alternative names across languages and contexts.[10]

Related Entities

website

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] ↑ . wikidata.org.
  2. [4] ↑ . wikidata.org.
  3. [5] ↑ . wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [10] ↑ . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Historical Marker Database. Retrieved May 3, 2026, from https://4ort.xyz/entity/historical-marker-database
MLA “Historical Marker Database.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/historical-marker-database.
BibTeX @misc{4ortxyz_historical-marker-database_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Historical Marker Database}}, year = {2026}, url = {https://4ort.xyz/entity/historical-marker-database}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Historical Marker Database — https://4ort.xyz/entity/historical-marker-database (retrieved 2026-05-03)

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