--- title: "League of Corinth | Ancient Mediterranean" description: "League of Corinth was Philip II’s Greek alliance after Chaeronea, uniting city-states under Macedonian leadership for protection and war against Persia." canonical: "https://fiveable.me/ancient-mediterranean/key-terms/league-of-corinth" type: "key-term" subject: "Ancient Mediterranean" unit: "Unit 10" --- # League of Corinth | Ancient Mediterranean ## Definition The League of Corinth was a federation of Greek city-states organized by Philip II of Macedon in 337 BCE. In Ancient Mediterranean, it shows how Macedon turned victory at Chaeronea into control over Greece. ## What It Is The League of Corinth was the Greek alliance Philip II created after his victory at the Battle of Chaeronea. In Ancient Mediterranean, it is best understood as a Macedonian-led federation that kept the city-states on paper while putting real power in Philip’s hands. The league was formed in 337 BCE, right after Philip had shown he could beat the strongest Greek coalitions in battle. That timing matters. The league was not just a peace agreement, it was a political settlement built from Macedonian military dominance. Greek states were allowed to keep a degree of self-rule, but they were tied into a common system that limited open warfare among them. The council structure made the league look cooperative. Representatives from member states could discuss shared issues and vote on major decisions, which gave the alliance a Greek political shape instead of looking like simple occupation. But the king of Macedon controlled the larger framework, so the council did not create equal power among the members. Philip set the agenda, and the league reflected Macedonian leadership more than Greek consensus. One of the league’s biggest goals was a campaign against Persia. That gave the alliance a shared outward purpose, which was useful because many Greeks had a long memory of earlier Persian invasions. Philip could present the campaign as revenge and unity, while also using it to extend Macedonian influence beyond Greece. The league turned Greek rivalry away from internal war and toward an external enemy, at least for a time. After Philip’s assassination in 336 BCE, Alexander inherited this system and used it as the starting point for his own conquests. That means the League of Corinth is not just a footnote to Philip’s rise. It is the bridge between Macedon’s takeover of Greece and Alexander’s expansion into Asia. A common mistake is to picture the league as a fully equal Greek union. It was not. It was a coalition shaped by conquest, diplomacy, and Philip’s ability to make Macedonian dominance look like pan-Hellenic cooperation. ## Why It Matters The League of Corinth is one of the clearest examples of how Macedon moved from being a regional kingdom to dominating the Greek world. It shows that Philip II did not rely on battlefield victory alone. He combined military force, political bargaining, and symbolic language about Greek unity to create a system that looked cooperative but worked in Macedon’s favor. This term also helps you track the shift from city-state rivalry to larger-scale politics. Before Philip, Athens, Sparta, Thebes, and other poleis often acted independently and fought one another. The league is a sign that those older patterns were breaking down under pressure from a stronger centralized power. It also connects directly to Alexander. When you see the league in a timeline, you are seeing the structure that made Alexander’s early campaigns possible. He did not start from scratch, he inherited a Macedonian-led order already stretched across Greece. That makes the League of Corinth a useful marker for the transition from Greek independence to the age of Macedonian empire. ## Connections ### Philip II Philip II created the League of Corinth after defeating the Greek coalition at Chaeronea. If you are tracking cause and effect, Philip is the person who turned Macedonian military strength into a political system that bound the Greek states together under his leadership. ### [Battle of Chaeronea](/ancient-mediterranean/key-terms/battle-of-chaeronea) Chaeronea was the military turning point that made the league possible. Philip’s victory showed that no Greek alliance could easily stop Macedon, so the League of Corinth grew out of a battlefield outcome rather than a voluntary equal partnership. ### [Hegemonic Power](/ancient-mediterranean/key-terms/hegemonic-power) The league is a strong example of hegemony, meaning one state leads a wider group without necessarily annexing every member. Macedon did not erase the Greek city-states, but it controlled the terms of their cooperation and set the direction of the alliance. ### Hellenistic Period The League of Corinth is one of the stepping stones into the Hellenistic world. It connects the classical Greek city-state system to the larger political order that followed Alexander’s conquests, where Greek influence spread far beyond the mainland. ## On the AP Exam A timeline ID or short-answer question might ask you to place the League of Corinth after Chaeronea and explain what it accomplished. The best response is to connect it to Philip II’s control of Greece, the council structure, and the planned Persian campaign. If you get a passage or prompt about Macedonian dominance, use the league as evidence that Philip ruled through both force and diplomacy. If the question asks how Greek city-states changed in the late classical period, mention that they kept local autonomy but lost real independence under Macedonian leadership. In essay work, it often appears as the political bridge between Philip’s reforms and Alexander’s expansion. ## League of Corinth vs Delian League The Delian League and the League of Corinth are both alliances, but they belong to different eras and had different power structures. The Delian League was led by Athens, while the League of Corinth was created by Philip II of Macedon. If you mix them up, check who is in charge and whether the alliance is about Greek independence or Macedonian control. ## Key Takeaways - The League of Corinth was a Macedonian-led federation of Greek states formed by Philip II in 337 BCE. - It gave member states limited autonomy, but real power stayed with Macedon. - The league helped turn Philip’s military victory at Chaeronea into political control over Greece. - Its main outward goal was a campaign against Persia, which tied Greek unity to anti-Persian action. - The league became the starting framework Alexander inherited before launching his own conquests. ## FAQs ### What is the League of Corinth in Ancient Mediterranean? The League of Corinth was an alliance of Greek city-states created by Philip II of Macedon after he defeated a Greek coalition at Chaeronea. It let the cities keep some local autonomy, but Macedon controlled the larger political agenda. In the course, it marks the moment when Greek independence was reshaped by Macedonian power. ### Why did Philip II create the League of Corinth? Philip used the league to lock in his victory over the Greek states and prevent them from uniting against him again. It also gave him a legal and political way to organize a campaign against Persia. So the league was both a control mechanism and a launchpad for expansion. ### Was the League of Corinth a true Greek democracy or equal alliance? No. It looked cooperative because member states had representatives and a council, but it was not equal. Philip II held the real power, so the league worked more like a Macedonian-led hegemony than a democratic union. ### How is the League of Corinth different from the Delian League? They are both alliances, but they served different rulers and different historical moments. The Delian League was led by Athens in the classical period, while the League of Corinth was organized by Philip II to control Greece after Chaeronea. If a question asks about leadership or purpose, that comparison usually makes the difference clear. ## Related Study Guides - [10.1 Philip II and the rise of Macedonian power](/ancient-mediterranean/unit-10/philip-ii-rise-macedonian-power/study-guide/gBi4RC99ID0k0XcS) ## About This Document Canonical Fiveable pages are available as Markdown at the same path plus `.md`. - [llms.txt](https://fiveable.me/llms.txt): index of Fiveable's sections and URL patterns - [llms-full.txt](https://fiveable.me/llms-full.txt): complete subject and unit listing - [MCP server](https://fiveable.me/mcp): call Fiveable as tools instead of fetching pages (`https://fiveable.me/api/mcp`) - [MCP server for AP teachers](https://fiveable.me/mcp/teachers): a teacher's classes, assignments and AP-rubric grading (`https://fiveable.me/api/mcp/teacher`) ## Structured Data ```json {"@context":"https://schema.org","@graph":[{"@type":"LearningResource","@id":"https://fiveable.me/ancient-mediterranean/key-terms/league-of-corinth#resource","name":"League of Corinth | Ancient Mediterranean","url":"https://fiveable.me/ancient-mediterranean/key-terms/league-of-corinth","learningResourceType":"Concept explainer","educationalLevel":"AP® / High School","about":{"@id":"https://fiveable.me/ancient-mediterranean/key-terms/league-of-corinth#term"},"audience":{"@type":"EducationalAudience","educationalRole":"student"},"dateModified":"2026-07-03T02:21:02.382Z","isPartOf":{"@type":"Collection","name":"Ancient Mediterranean Key Terms","url":"https://fiveable.me/ancient-mediterranean/key-terms"},"author":{"@type":"Organization","@id":"https://fiveable.me/editorial#content-team","name":"Fiveable Content Team","url":"https://fiveable.me/editorial","parentOrganization":{"@id":"https://fiveable.me/#organization"},"member":[{"@type":"Person","name":"Amanda DoAmaral","sameAs":["https://www.linkedin.com/in/adoamaral"]},{"@type":"Person","name":"Becky Bahr","sameAs":["https://www.linkedin.com/in/becky-bahr-b52743132"]}]},"publisher":{"@type":"Organization","name":"Fiveable","url":"https://fiveable.me"}},{"@type":"DefinedTerm","@id":"https://fiveable.me/ancient-mediterranean/key-terms/league-of-corinth#term","name":"League of Corinth","description":"The League of Corinth was a federation of Greek city-states organized by Philip II of Macedon in 337 BCE. 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