There, the authorities say that, about 10,000 years ago, humans suddenly learned how to sow and harvest such crops as wheat and barley. There, civilization really began. Wadi Kubbaniya, Egypt . At this site, G. Hillman, of the Institute of Archeology, London, has found grinding stones and tubers. This site is dated at 17,000-18,000 years old.
New Guinea highlands .
J. Golson, formerly of the Australian National University, has found ditches and crude fields in this area. The implication is that humans were tending plants here between 7,000 and 10,000 years ago. Buka Island, Solomons . While excavating Kilu cave, M. Spriggs and S. Wickler unearthed small flake tools with surfaces displaying starch grains and other plant residues. Evidently, these tools were used for processing taro.