The development of intensive agriculture triggered the first appearance of cities and the emergence of civilization. This occurred because the vast increase in food production enabled by intensive agriculture provided support for

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The development of intensive agriculture triggered the first appearance of cities and the emergence of civilization. This occurred because the vast increase in food production enabled by intensive agriculture provided support for human early civilizations to be established.

That was the case of the oldest civilization on planet earth: the Sumerians. It was also the case of other ancient civilizations such as ancient Egypt, the Indus Valley Civilization, and ancient China.

The Neolithic Revolution, also known as the Agriculture Revolution, was the time in human history when humans stopped being Nomads and started to settle in one place to establish the firsts civilizations, as was the case of the Sumerians, the oldest civilization on Earth. The Sumerians settled in the middle of the Euphrates and Tigris Rivers, in the Middle East.

They developed agriculture techniques, learned to benefit from the flood of the rivers to have fertile soil and grow crops, planted seeds, domesticated animals, produce a surplus of food, and established powerful city-states such as Nippur, Eridu, Lagash, Kish, Uruk, and Ur.

churchill warned that the soviet union had cut eastern europe off from the west with an "iron curtain."

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the space race was a battle to make advanced technology to get to the moon and to get a better understanding of space.