Civilization, like agriculture, was a worldwide phenomenon, manifesting itself in seven major sites throughout the world over many millennia after 3500 b.c.e., as well as in a number of lesser manifestations.
Civilization, like agriculture, was a worldwide phenomenon, manifesting itself in seven major sites throughout the world over many millennia after 3500 b.c.e., as well as in a number of lesser manifestations. (Use the image below)