Why is the continent of Africa known as the “cradle of civilization”?

In Mesopotamia, the convergence of the Tigris and Euphrates rivers produced rich fertile soil and a supply of water for irrigation. ... It is because of this that the Fertile Crescent region, and Mesopotamia in particular, are often referred to as the cradle of civilization.

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there were three types of british colonies: royal, proprietary, and self-governing. each type had its own characteristics. proprietary colonies, such as pennsylvania, maryland, and delaware, were basically land grants from the british government.

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