Tuskegee, Alabama, U.S. George Washington Carver (1864 – January 5, 1943) was an American agricultural scientist and inventor who promoted alternative crops to cotton and methods to prevent soil depletion. He was the most prominent black scientist of the early 20th century....
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Four of the earliest agrarian societies developed in fertile river valleys. Since people had already tamed plants and animals in those areas, societies had a head start. The first of these was in Mesopotamia, where Iraq is today. The land between the Tigris and Euphrates rivers was especially fertile
