pastportraits

 Civilizations have a complicated and diverse history, having separately developed in many regions of the world. Environmental, political, economic, and social elements all have a role in how civilizations grow.  The following major themes and contributing elements can be found in the emergence of civilizations: Revolution in Agriculture: An important phase was the shift from a nomadic hunting and gathering lifestyle to permanent agriculture. A more steady food source made possible by the capacity to domesticate and nurture plants and animals allowed for the construction of larger and more permanent settlements.  Civilizations in the River Valley: Major rivers like the Nile in Egypt, the Tigris and Euphrates in Mesopotamia, the Indus in the Indian subcontinent, and the Yangtze and Yellow in China were the sites of many early civilizations. These rivers promoted trade and transportation while also providing rich soil for farming. Overstock and Expertise: The transition to ...