The Achaean League (or Achaian Confederacy) was a federation of Greek city-states in the north and central parts of the Peloponnese in the 3rd and 2nd centuries BCE. With a combined political representation and land army, the successful early years of the League would eventually bring it into conflict with other regional powers Sparta, Macedon, and then later Rome. Defeat by the latter in 146 BCE brought the confederacy to a dramatic end.
More about: Achaean LeagueDefinition
Timeline
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c. 280 BCEFounding of the Achaean League in the Peloponnese of Greece.
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c. 255 BCEThe position of strategos is introduced to lead the representatives of the Achaean League.
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251 BCESicyon joins the Achaean League in Greece.
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243 BCECorinth is attacked and brought into the Achaean League.
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235 BCEMegelopolis joins the Achaean League.
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222 BCEThe Achaean League and Antigonos III of Macedon defeat Sparta at Sellasia.
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212 BCE - 205 BCEThe Achaean League sides with Macedon against Rome in the First Macedonian War.
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200 BCE - 196 BCEThe Achaean League sides with Rome in the Second Macedonian War.
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c. 191 BCEThe Achaean League signs a treaty of alliance with Rome.
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146 BCERome sacks Corinth and dissolves the Achaean league. Greece is ruled by Rome.
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146 BCEOpen war breaks out between Rome and the Achaean League.
