What were the two main rivers that were use farming in africa?

The civilization of Ancient Mesopotamia grew up along the banks of two great rivers, the Euphrates and the Tigris. In the midst of a vast desert, the peoples of Mesopotamia relied upon these rivers to provide drinking water, agricultural irrigation, and major transportation routes.

president thomas jefferson commissioned the expedition shortly after the louisiana purchase in 1803 to explore and to map the newly acquired territory, to find a practical route across the western half of the continent, and to establish an american presence in this territory before britain and other european powers

uncle sam would be tossing and turning in his grave : *)