How did the Spartans - citizens of Sparta - live their lives in ancient Greece?

Answer

I know that Sparta was a strong military based city in Ancient Greece.

The Word "spartan" (which means "marked by strict self-discipline or self-denial" or "marked by simplicity, frugality, or avoidance of luxury or comfort") was created in homage to their civilization. That ought to give you some idea of what their lives were like.