Asia
The coastal periphery was home to some of the world's earliest known civilizations, each of them developing around fertile river valleys. The civilizations in Mesopotamia, the Indus Valley and the Yellow River shared many similarities. These civilizations may well have exchanged technologies and ideas such as mathematics and the wheel. Other innovations, such as writing, seem to have been developed individually in each area. Cities, states and empires developed in these lowlands.
Andean civilizations
The Andean civilizations were a patchwork of different cultures and peoples that mainly developed in the coastal deserts of Peru. They strectched from the Andes of Colombia southward down the Andes to northern Argentina and Chile. Archaeologists believe that Andean civilizations first developed on the narrow coastal plain of the Pacific Ocean. The Norte Chico civilization of Peru is the oldest civilization in the Americas, dating back to 3200 BCE.