It set up an anti-Persian league after the Persian invasion was repelled, giving the couple of hundred Greek city-states the option of contributing ships or money. Most took the easy way of money, so Athens had the strongest fleet, paid for by others.
When a peace was signed with the Persians, Athens continued to collect the money - by force where nacessary - and so maintained its naval supremacy.
Athens had a powerful navy.
Athens
Spartans
Athens.
Spartans
the only war between Athens & Sparta is the pelioponnesion war where Sparta fought Athens because they thought they were too powerful. in the end Athens surrendered and Sparta then became the most powerful.
Athens is so dumb
Athens became very powerful and more democratic
When Athens became powerful.
Athens
Pericles ruled Athens in 460 b.c when Athens and Sparta were the most powerful city-states
Powerful