No. The Fertile Crescent was the first civilization. The civilizations of the Indus Valley, Egypt, and China all predated the Greeks.
The Greeks built the Parthenon on the Athenian Acropolis.
The Greeks built their Temple for themselves and their Gods.
The Greeks
Yes
For the Greek Gods
The Greeks established colonies for trading with other city-states.
The Greeks built temples for the gods they worshiped.
by mading it
With hard work.
As a gift for Athena
No, the Greeks were using bricks to build. It was the Romans that later on discovered the concrete.