How did they develop their culture.

The ancient Rome develop their culture by influence. Their culture was once copy from the ancient Greece, and some from the Etruscan. But later they develop culture by themselves. They also got influence by other small civilization like Gaul, or Celt. Democracy is one of the most distinguished part of their culture. They also invented pax romana. It base on the idea that the conquered people got freedom of speech, trial, religion, and government if they pay taxes to the Romans. Surprisingly no one thought about it before and was lost afterward (it was re-discover in recent time). This two idea let to the thrive of Ancient Rome. Look at it, before ancient Romans civilization collapse the Ancient Romans was ruled by a non democracies government.