THE BEGINNINGBy Gennifer Burrell

REVOLUTION IN ARGRICULTURE

-building civilizations and food production systems

-the stationary life agricultural production required, and the new scale on which people were growing food in those newly settled regions.

 REVOLUTION IN CLIMATE

the climate shift that took place at the end of the last Ice Age

the climate became more suitable for the species of human leading to our own to live in. before the Ice Age was over, human beings were able to colonize much of the world in the way they wouldn’t be able to later

URBAN REVOLUTION

These first civilizations included: ancient Sumer, composed of many city-states, ancient Egypt, and nearby Nubia, among other early and widespread centers of innovation

After 3,500 B.C.E., cities were developing independently in several places on earth.