478 BCE, Delos. An event.
478 BCEDelos
2,503 years ago
, Delos
The Greek allies make Athens their leader against Persia. Each city owes ships or money, and the common treasury is kept on the island of Delos.
The tribute was first fixed at four hundred and sixty talents. The common treasury was at Delos, and the congresses were held in the temple.
Background: Delian League, Wikipedia (opens en.wikipedia.org)
By the mid-400s BCE the alliance had become what is called the Athenian Empire, and by 431 BCE the threat it posed to Sparta, with Athens' heavy-handed rule, prompted the Peloponnesian War.
By the mid-fifth century BC, it had developed into a naval imperial power, conventionally called the Athenian Empire, where Athens established complete dominion and the allies became increasingly less autonomous.
By 431 BC, the threat that the League presented to Spartan hegemony, combined with Athens's heavy-handed administration, prompted the outbreak of the Peloponnesian War
Wikipedia, Delian League (opens en.wikipedia.org), as of 2026-09-23. Text CC BY-SA 4.0. Our line is checked against these sentences only.
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