Well, stone age cultures were the earliest, but if you want actual civilisations?
Probably Sumer, Assyria and Egypt
The three civilizations commonly referred to as "The Classical Civilizations" are the Mediterranean, Indian, and China Civilizations.
The three civilizations in Age of Mythology are Greek, Egyptian, and Norse.
korea
The three civilizations in Mesopotamia were called Sumer, Babylon, and Assyria.
The three civilizations in Aom are Grrek, Egyptian, Then NOrse. If u get the titans expansion its the atlantean civilization.
Spain,France and Germany are the three
nothing
mesopatomia
Nubia, Egypt, and Ethiopia
We don't know. We can't find them!
Ceases bukui and manuo
The Mayas, the Aztecs, and the Incas