What were the achievements of the Persians?

1. The Greek city-states gained or maintained their independence and were able to get back to their usuall occupation of fighting each otheer.

2. Athens was able to take control of many of those Greek cities and turn them into an empire of its own.

3. This led to the Peloponnesian War which devastated the Greek world.

These things were great in effect but not great in human welfare.