Nicomedia

ancient city of Bithynia in modern-day Turkey
Place ancient_city Q209349
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Summary

Nicomedia is an ancient city[1]. Nicomedia ranks in the top 4% of ancient city entities by monthly Wikipedia readership (4,020 views/month).[2]

Key Facts

  • Located in the administrative territorial entity: Yalova Province[3]
  • Country: Turkey[4]
  • Instance of: archaeological site[5]
  • Named after: Nicomedes I of Bithynia[6]
  • Location: Bithynia[7]
  • Commons category: Nicomedia[8]
  • Inception: 264 BC[9]
  • Located in/on physical feature: Marmara Region[10]
  • Significant event: Siege of Nicomedia[11]
  • Topic's main category: Category:Nicomedia[12]
  • Described by source: New Encyclopedic Dictionary[13], Brockhaus and Efron Encyclopedic Dictionary[14], Russian translation of Lübker's Antiquity Lexicon[15], Encyclopædia Britannica 11th edition[16], Granat Encyclopedic Dictionary[17]
  • Replaces: Astacus in Bithynia[18]
  • Replaced by: İzmit[19]
  • Category for people born here: Q9226109[20]
  • Category for people who died here: Q9219285[21]
  • Native label: Νικομήδεια[22]
  • Category of associated people: Q32671508[23]
  • Different from: Nea Nikomedeia archeological site[24]
  • Time period: Roman Empire[25]
  • State of conservation: preserved[26]

Body

Cultural Significance

Things named for Nicomedia include Edict of Toleration by Galerius[27], an edict[28], in Ancient Rome[29].

Why It Matters

Nicomedia has Wikipedia articles in 24 language editions, a strong signal of global cultural recognition.[30] Nicomedia is known by 37 alternative names across languages and contexts.[31]

Entities named for Nicomedia include Edict of Toleration by Galerius[27], an edict[28], in Ancient Rome[29].

References

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

Direct Wikidata claims

  1. [4] ↑ . wikidata.org.
  2. [5] ↑ . wikidata.org.
  3. [3] ↑ . wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . wikidata.org.
  9. [11] ↑ . wikidata.org.
  10. [12] ↑ . wikidata.org.
  11. [13] ↑ . wikidata.org.
  12. [14] ↑ . wikidata.org.
  13. [15] ↑ . wikidata.org.
  14. [16] ↑ . wikidata.org.
  15. [17] ↑ . wikidata.org.
  16. [18] ↑ . wikidata.org.
  17. [19] ↑ . wikidata.org.
  18. [20] ↑ . wikidata.org.
  19. [21] ↑ . wikidata.org.
  20. [22] ↑ . wikidata.org.
  21. [23] ↑ . wikidata.org.
  22. [24] ↑ . wikidata.org.
  23. [25] ↑ . wikidata.org.
  24. [26] ↑ . wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [27] ↑ . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [28] ↑ . Wikidata. wikidata.org. → on this site
  2. [29] ↑ . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [30] ↑ . Wikidata sitelinks. wikidata.org.
  3. [31] ↑ . 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). Nicomedia. Retrieved October 14, 2026, from https://4ort.xyz/entity/nicomedia
MLA “Nicomedia.” 4ort.xyz Knowledge Graph, 4ort.xyz, 14 Oct. 2026, https://4ort.xyz/entity/nicomedia.
BibTeX @misc{4ortxyz_nicomedia_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Nicomedia}}, year = {2026}, url = {https://4ort.xyz/entity/nicomedia}, note = {Accessed: 2026-10-14}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Nicomedia — https://4ort.xyz/entity/nicomedia (retrieved 2026-10-14)

Canonical URL: https://4ort.xyz/entity/nicomedia · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 16w ago · Andre Engels · 2026-06-26 view diff on Wikidata ↗
    Oxford classical dictionary id → 4418
    "/* wbsetclaim-create:1||1 */ Oxford classical dictionary id: 4418, Matched to [[:toollabs:mix-n-match/#/entry/107286564|Nicomedia (#107286564)]] in [[:toollabs:mix-n-match/#/catalog/4102|Oxford Classi"
  2. 21w ago · THEbotIT bot · 2026-05-17 view diff on Wikidata ↗
    Category of associated people → Q32671508
    Instance of → —
    Different from → Nea Nikomedeia archeological site
    Bibliothèque nationale de france id → 12535653c
    + 28 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-create:1||1 */ Described by source: Pauly–Wissowa, Add reference to a lexicon article."
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.