Dia (Bithynia)
port city of ancient Bithynia
Dia (Ancient Greek: Δῖα), also Diospolis (Διόσπολις), was a port city of ancient Bithynia on the Pontus Euxinus in Asia Minor. Marcian of Heraclea places it 60 stadia east of the mouth of the Hypius, which river is between the Sangarius River and Heraclea Pontica. The name in Marcian, Diaspolis (Δίας πόλις), may be a mistake for Diospolis, which Ptolemy has. There are some very rare coins with the epigraph Dias (Διας), which Sestini assigns to this place.
Its site is located near Akçakoca in Turkey.
References
This article incorporates text from a publication now in the public domain: Smith, William, ed. (1854–1857). "Dia". Dictionary of Greek and Roman Geography. London: John Murray.
The public source identifies “Dia (Bithynia)” as port city of ancient Bithynia. This brief keeps that definition visible, then builds a research path around Bithynia, port and city.
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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 Mar 24, 2026. The linked authority identifier is Q65046689. Authority coordinates are 41.087, 31.124. 1 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1854 and 1857.
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This entry incorporates text from “Dia (Bithynia)” 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.