Yes.
No, Athens became the most powerful Greek city-state.
No, Sparta became most powerful after Athens was defeated in the Peloponnesian War, was stripped of its empire and revenue, and so lost its golden age without the money it mulcted from its empire.
Sparta was temporarily the main power until overturned by Thebes three decades later.
It varied over time - Argos, Sparta, Athens, Sparta, Thebes.
sparta and athens
sparta
Sparta had the most intense and powerful army in the time of the Persian Empire.
The most famous and powerful of all the city states of ancient Greece were Sparta and Athens.
Sparta was weakened because at Sparta there were only woman who could not fend for themselves against rivals close to Sparta and so their city fell horribly. At one time they were the most powerful city-state in Greece.
It is located in Greece. It is a war like city-state and is famous for begin prepared for battle.
I don't now help
They were polar opposites, Athens being a scholarly, open empire, with Sparta being a military state that detested change. Sparta had a powerful army, Athens had a powerful navy. Both were also ambitious and wanted to expand their reaches of influence. They were bound to bump heads a few times.