What made Sparta so different from all the other city states in Greece?

Spartans were a lot more aggressive and war-minded to other city states. Also women were seen as equals more than other city-states as they were allowed to go to school and take on male roles but in other ways they were inferior as they obeyed men like slaves.

The Spartans were a lot more conservative with their religion and everyday life as they would never build buildings of stone only certain temples, otherwise they would build it from wood as to why there is hardly any evidence of Sparta.