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Cyzicus

ancient city of Mysia 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 revisionSep 1, 2026
Entity authorityQ615449
Source-derived summary

Cyzicus ( SIZ-ik-əs; Ancient Greek: Κύζικος, romanized: Kúzikos; was an ancient Greek town in Mysia in Anatolia in the current Balıkesir Province of Turkey. It was located on the shoreward side of the present Kapıdağ Peninsula (the classical Arctonnesus), a tombolo which is said to have originally been an island in the Sea of Marmara only to be connected to the mainland in historic times either by artificial means or an earthquake.

The site of Cyzicus, located on the Erdek and Bandırma roads, is protected by Turkey's Ministry of Culture.

History

Ancient

The city was said to have been founded by Pelasgians from Thessaly, according to tradition at the coming of the Argonauts; later it received many colonies from Miletus, allegedly in 756 BC, but its importance began near the end of the Peloponnesian War when the conflict centered on the sea routes connecting Greece to the Black Sea. At this time, the cities of Athens and Miletus diminished in importance while Cyzicus began to prosper. Commander of the Athenian fleet Alcibiades defeated the Spartan fleet in a major naval engagement near Cyzicus known as the Battle of Cyzicus in 410 BC. Famed ancient philosopher Eudoxus of Cnidus established a school at Cyzicus and went with his pupils to Athens, visiting Plato. Later he returned to Anatolia to his hometown of Cnidus, and died circa 350 BC. The era of Olympiads in Cyzicus was reckoned from 135 or 139.

Owing to its advantageous position it speedily acquired commercial importance, and the gold staters of Cyzicus were a staple currency in the ancient world till they were superseded by those of Philip of Macedon. Its unique and characteristic coin, the cyzicenus, was worth 28 drachmae.

During the Peloponnesian War (431–404 BC) Cyzicus was subject to the Athenians and Lacedaemonians alternately.

Editorial summary

“Cyzicus” enters the record as ancient city of Mysia in modern-day Turkey. Crown Archives preserves that source wording while asking what Cyzicus, ancient and city can confirm, complicate or overturn.

Editorial reviewMost useful as a place-based finding aid connecting the present description to earlier jurisdictions, maps and built evidence. The current 299-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 strongest next move is a source search built around Cyzicus, ancient and city.
Editorial analysis

Why this record matters

“Cyzicus” is worth following because a concise public description often conceals a longer documentary argument. Here, Cyzicus, ancient and city provides the most credible route into that argument.

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 Sep 1, 2026. The linked authority identifier is Q615449. VIAF identifies the subject as 235018562. Authority coordinates are 40.388, 27.871. 2 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank.

Critical limits

Architectural summaries often privilege surviving fabric and can understate demolished phases, contested use or displaced communities. 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 “Cyzicus”, its source revision and the description used here.
  2. Expand the search: follow Cyzicus primary sources, Cyzicus archive and Cyzicus 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 “Cyzicus”?
  2. Which earlier names or jurisdictions may reveal additional records?
  3. What physical evidence or contemporary plan supports the description?
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Source & attribution

This entry incorporates text from Cyzicus” 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.