The people of the Peloponnesian peninsula

he Mycenaean civilization, mainland Greece's  first major civilization, dominated the Peloponnese in the Bronze Age from its stronghold at Mycenae in the north-east of the peninsula. The Mycenaean civilization collapsed suddenly at the end of the 2nd millennium BC.

2. The Greek empire

Explanation:

Chandragupta Maurya was an Indian ruler of the antique period. He managed to gradually conquer much of India, using wise military tactics and after conquering territories he managed to unify the people. As a ruler he is attributed with many achievements.

In order to form his empire though, it was not just the Indian kingdoms that he had to take over, but also the remnant of the Macedonian empire. After the death of Alexander, the empire was divided, thus weakened. Chandragupta Maurya used this opportunity and managed to come out victories with what was left from the Macedonian army, thus pushing them back westward.

Note: There was never a Greek empire, there was only Greek city-states and colonies. It was the Kingdom of Macedon that managed to create an empire, in which the Greeks too were conquered and subjugated.