It demonstrated how to make money from allies - leading the anti-Persian league, and when the Persian threat abated, continuing to collect the league contributions to spend on itself.
It demonstrated the advantages and disadvantages of radical democracy - to put the people in charge, but then expose them to the wiles of opportunistic leaders who brought them into war, defeat and loss of empire.
It showed how to expend money on spreading state income amongst the people, but how this led to gross unsustainable overspending which bankrupted the state and brought it back to penury.
There are lessons there for modern states.
Athens
Some advances were in government, art, philosophy, drama, and literature.
What were some advances in medicine that were important during the war
leg
Technology advances were pocket calculators and touchtone telephones.
i done no
why were some of the advances that the portuguese made in sailing under Prince Henrys leadership
and idgaf
no food
Some Athenians did however Athens as a Nation did not, however it is unknown if they did.
How was Athens not considered a Democracy from 460-430 BCE
the advances were the toothbrush and the water bottlr