# Athens allies with Corcyra, a step into the Peloponnesian War file

Date: 433

## The fact

In 433 BCE Athens made a defensive alliance with Corcyra and fought at Sybota. The dated alliance-war is not the Megarian decree and not the 431 crowding strategy. [Pericles](/people/pericles)’s documented role is: The demos voted an alliance with Corcyra against Corinth. Pericles backed the policy; unnamed crews fought at Sybota; he did not uniquely row. Do not twin this with the Megarian decree. An alliance is not a trade exclusion. Later editors, printers, and excavators remain named where they appear. Pericles's documented role is: The demos voted an alliance with Corcyra against Corinth. Pericles backed the policy; unnamed crews fought at Sybota; he did not uniquely row.

## Context

A Corinthian colony-fight, unnamed triremes, and later Thucydides’ ‘truest cause’ already structure the file. An alliance is not unique authorship of every later killing. Sharing with the demos is required. Named others on the file: Corcyrean envoys, Corinthian opponents, unnamed Athenian crews, and the demos share the alliance. The public setting is the file around -0433-01-01. Unnamed clerks, soldiers, printers, or later editors may appear without becoming this instrument. The instrument stays Athens allies with Corcyra, a step into the Peloponnesian War file. The setting of Athens allies with Corcyra, a step into the Peloponnesian War file is the public file around -0433-01-01. Shared offices, unnamed crews, printers, or later editors may appear without becoming this instrument. Driver [humanitarian-access](/drivers/humanitarian-access) is attached because the significance names a mechanism from this act, not because a standing list needed coverage.

## Evidence and sources

Britannica and Thucydides independently date the 433 Corcyra alliance as distinct from the Megarian file. Official: Britannica — Pericles, Corcyraean alliance (https://www.britannica.com/biography/Pericles-Athenian-statesman; Encyclopaedia Britannica). Independent: Perseus — Thucydides, Corcyra and Sybota (https://www.perseus.tufts.edu/hopper/text?doc=Perseus:text:1999.01.0200; Perseus Digital Library). The two URLs are different pages. Where the carrier is a later edition or a received narrative, that limit is stated rather than upgraded to an autograph. Official carrier: Britannica — Pericles, Corcyraean alliance (https://www.britannica.com/biography/Pericles-Athenian-statesman; Encyclopaedia Britannica). Independent carrier: Perseus — Thucydides, Corcyra and Sybota (https://www.perseus.tufts.edu/hopper/text?doc=Perseus:text:1999.01.0200; Perseus Digital Library).

Official or archival record: Britannica — Pericles, Corcyraean alliance (https://www.britannica.com/biography/Pericles-Athenian-statesman; Encyclopaedia Britannica).

## Significance

Worsening humanitarian-access path: entry into a naval war via alliance. Complex shared demos vote. Welfare reading worsening. The attached mechanism is A dated alliance put Athens into a Corinthian-Corcyrean naval war as a completed path toward the larger war. Lag to any modern indicator is not treated as zero. This path is attached because the mechanism is named from this act, not because a driver list needed coverage. The welfare reading on this path is worsening.

If a number is not in the two records named above, it is not supplied here.

## What is established and what is not

Established: 433 Corcyra alliance and Sybota fighting. Not established: that the Megarian decree is this same instrument. Established: a sourced public record of Athens allies with Corcyra, a step into the Peloponnesian War file under -0433-01-01. Established: a sourced public record of Athens allies with Corcyra, a step into the Peloponnesian War file under -0433-01-01.

Confidence is stated on the impact path, not hidden in adjectives. Do not twin this with the Megarian decree. An alliance is not a trade exclusion. Mixed effects of Athens allies with Corcyra, a step into the Peloponnesian War file are separate paths.

Later competitions, monuments, translations, UNESCO listings, museums, and adaptations are not converted into extra lifetime acts.

The attached driver is humanitarian-access. The welfare reading used in this dossier is worsening. That reading is an impact-path choice, not a property stored on the Fact itself.

Shared responsibility is part of Athens allies with Corcyra, a step into the Peloponnesian War file. Naming Pericles does not delete co-authors, institutions, or later transmitters. The lag from -0433-01-01 to any measured indicator is not treated as zero. Alternative explanations — weather, other armies, later statutes, or independent cultural change — remain live where the sources do not close them.

## People

- Pericles: https://factrail.ai/people/pericles

## Drivers

- Humanitarian Access: https://factrail.ai/drivers/humanitarian-access

## Sources

- https://www.perseus.tufts.edu/hopper/text?doc=Perseus:text:1999.01.0200
- https://www.britannica.com/biography/Pericles-Athenian-statesman

## Methodology

https://factrail.ai/methodology

Canonical: https://factrail.ai/facts/per-corcyra-433