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olmec
The first documented one was on the island of Crete.
Ethiopia Highlands, the source of Nile -Blue Nile.
As societies grew into civilizations, several key developments occurred, including the creation of complex social hierarchies, the establishment of centralized governments, the development of written language and record-keeping systems, the advancements in technology and infrastructure such as irrigation and architecture, and the growth of trade networks both within the civilization and with other civilizations.
No
it was something that every body translates his own
The Mesopotamians
The answer will depend on what the "myan civilation" (whatever than means) was or is! I suggest some checking of your spelling may be a good idea.
chief ruler
Because
because cavemen made civilation
they collapse in the 900s