It was made up of lots of smaller states. These states were always squabbling and often went to war. Sparta and Athens fought a long war, called the Peloponnesian War, from 431 to 404BC.

It was made up of lots of smaller states. These states were always squabbling and often went to war. Sparta and Athens fought a long war, called the Peloponnesian War, from 431 to 404BC.