They learn new culture and new ways of life
By trading with other regions to make more goods available.
Greece is a highly mountainous region. As such it was difficult for people from different regions to trade, mingle and battle with each other. This had the effect that principles and characteristics of the various regions were quiet diverse. For example Spartans were warriors, Atenians were scolars etc.
The different U.S. regions were linked economically by people trading with each other and people sending telegraphs of their sales to the other regions in the U.S.
They are good for trading with other countries.
They were used for trading with other regions, food, and water surplus.
The different U.S. regions were linked economically by people trading with each other and people sending telegraphs of their sales to the other regions in the U.S.
They got food and gold and lots of other stuff.
Three other regions of Greece:ThessalyEpirusThraceAnd three countries:AlbaniaSerbiaBulgaria
Mainland greece, its really, just mainland Greece which has Athens within it... then you has the Peloponnese where Sparta and Olympia are and Crete, and the islands and just other regions such as Thrace, etc.
Megara had the same religion as all the other regions of ancient Greece. They probably worshiped Apollo, Poseidon and Zeus ahead of the others, though.
Greece was mainly composed of city states free from each other, where no one city dominated all others. It is a situation where there can be no unified country. Such a region cannot dominate other regions around. It may be because of Geography that did not allow communications between them as is the case with many other regions. Only Macedonia, a bit to the interior, developed traits to dominate other regions. It developed an Empire that encompassed whole of Greece, somehow. Such unity in the face of external aggression like that from Persia was demonstrated amply. But it didn't last.
It makes trading with other countries much more harder.