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Cardia (Thrace)

ancient city of Thrace in modern-day Turkey

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 revisionJun 21, 2026
Entity authorityQ965581 ↗
Source-derived summary

Cardia or Kardia (Ancient Greek: Kαρδία), anciently the chief town of the Thracian Chersonese (today Gallipoli peninsula), was situated at the head of the Gulf of Melas (today the Gulf of Saros). It was originally a colony of the Milesians and Clazomenians; but subsequently, in the time of Miltiades (late 6th century BC), the place also received Athenian colonists, as proved by Miltiades tyranny (515–493 BC). But this didn't make Cardia necessarily always pro-Athenian.

Name

According to local tradition, the name Kardia was derived from the Greek word kardía (“heart”). It was said that when the city's founder, Hermochares (Ἑρμοχάρης), was performing a sacrifice, a raven seized the heart of the sacrificial animal and carried it away, eventually dropping it at the site where the city was founded. Another tradition suggests that the name may have originated from a pre-existing name for the area in the language of the Scythians. Another explanation is given by Gaius Julius Solinus, who states that Kardia was so called because the city was built in the shape of a heart, while Pliny the Elder similarly explains that the name came from the heart-like shape of the land.

History

In 410 BC, during the Peloponnesian War, the Athenians withdrew from Sestus to Cardia at night after learning that the Spartan admiral Mindarus was preparing to attack them with many ships. There, Alcibiades rejoined the fleet after escaping imprisonment in Persia, and the Athenians regrouped before launching the campaign that culminated in their decisive victory at the Battle of Cyzicus.

In 357 BC, when Athens took control of the Chersonese, Cardia under the rule of a Thracian prince, was the only city to remain neutral; but the decisive year was 352 BC, when the city concluded a treaty of amity with king Philip II of Macedonia.

Editorial summary

The public source identifies “Cardia (Thrace)” as ancient city of Thrace in modern-day Turkey. This brief keeps that definition visible, then builds a research path around Cardia, Thrace and ancient.

Editorial reviewA valuable geographic starting point for tracing changing names, boundaries, uses and administrative responsibility. The current 300-word lead offers orientation but no explicit four-digit date, so chronology should not be assumed. The selected authority fields contribute no independent date. Its value is orientation rather than verdict, with Cardia, Thrace and ancient providing the first useful test.
Editorial analysis

Why this record matters

A short description can identify a subject without explaining its stakes. For “Cardia (Thrace)”, the useful work is to connect “ancient city of Thrace in modern-day Turkey” to the records capable of establishing context and consequence.

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 Jun 21, 2026. The linked authority identifier is Q965581. Authority coordinates are 40.547, 26.741. 2 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank.

Critical limits

Modern boundaries and familiar names can conceal earlier jurisdictions or structures that do not align with the present site. 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
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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 “Cardia (Thrace)”, its source revision and the description used here.
  2. Expand the search: follow Cardia (Thrace) primary sources, Cardia (Thrace) archive and Cardia 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

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  2. Which earlier names or jurisdictions may reveal additional records?
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Source & attribution

This entry incorporates text from “Cardia (Thrace)” 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.