Because of its geography
it was good for fishing and they could develop trade
The three early river civilizations are the Incas. Aztecs and Mayas
Ruins of early civilizations were most commonly found in valleys formed by the flow of dried out rivers.
because early man first settled there during the Ice Age and as the ages pass they learned to develop tools and lived together as one tribe.
the ability to farm (great soil due to floods) and travel (river+boat=....) between the two rivers.
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Atlantic ocean
china
China
it was good for fishing and they could develop trade
China
Violent spring floods.
Isolation from other early civilizations
there wasn't enough love
the rivers
The three early river civilizations are the Incas. Aztecs and Mayas