477 BC
yes they did
Athens formed the Delian League with other city states including Sparta
they formed the delian league because they had to join toegether to defeat the Persians
they formed the delian league because they had to join toegether to defeat the Persians
No, Sparta was not part of the Delian League. The Delian League was a coalition of Greek city-states led by Athens, formed in 478 BCE to continue the fight against Persia after the Persian Wars. Sparta, on the other hand, was a member of the Peloponnesian League, which was a rival alliance to the Delian League. The two leagues eventually clashed in the Peloponnesian War.
The Athenians formed the Delian League.
It was primarily the city - state of Athens that formed the Delian League which was a loose coalition of other Greek city - states (Polis) to thwart Persian expansionist policies . Below at the related link is a list of Delian members .
Athens ruled the Delian League.
It is true that about 180 Greek city-states formed the Delian League to protect themselves from Persian rule. Not sure why 'why' would be 'true of false'.
Wars of the Delian League happened in -449.
The power of the Athenian led Delian league and to curb the power of Argos and Corinth. "Sparta formed its Pelopnnesian League, motivated at least partly by Athen's use of Delian League funds to rebuild its Acropolis"