Editing 457 BC (section)

== Events ==
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=== By place ===
==== Greece ====
* [[Athens]], the leader of the [[Delian League]], comes into conflict with [[Corinth]] and its ally [[Sparta]] (leader of the [[Peloponnesian League]]) over [[Megara]]. [[Nicomedes of Sparta|Nicomedes]] of Sparta, regent for King [[Pleistoanax]], leads an army of 11,500 [[hoplites]] into [[Boeotia]] to help [[Thebes, Greece|Thebes]] put down a rebellion by [[Phocis]].
* Athenian forces block the routes back to the [[Peloponnese]], so the Spartans decide to remain in Boeotia and await the Athenian attack. The Athenians and their allies, with 14,000 men under the command of [[Myronides]], meet the Spartans at [[Battle of Tanagra (457 BC)|Battle of Tanagra]]. The Spartans win the battle, but they lose many men and so are unable to follow up on their victory.
* The Athenians regroup after the battle and march into Boeotia. Led by Myronides, the Athenians defeat the Boeotians in the [[Battle of Oenophyta]], and then destroy the walls of Tanagra and ravage [[Locris]] and [[Phocis]].
* Athens goes on to defeat [[Aegina]] later in the year, and to finish the construction of the Long Walls to the Athenian port of [[Piraeus]] (an action opposed by Sparta).
* Boeotia, Phocis and Opuntian Locris become members of the Delian League. Athens now has enrolled in the Delian League all the Boeotian cities except Thebes. [[Aegina]] is forced to become a member of the League.  It is assessed, with [[Thasos]], for a yearly contribution to the League of 30 [[Talent (measurement)|talents]].
* The [[Zeus]] Temple at [[Olympia, Greece|Olympia]] is completed.  The forty-foot [[statue of Zeus]] inside it becomes one of the [[Seven Wonders of the Ancient World]].
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