The dawn of agriculture in the Neolithic was a major development in the evolution of modern human culture. Although scientists agree that farming developed independently several times around the world, including in Africa, the Americas, and eastern Asia, the origins of many key crops, such as wheat, barley, and legumes, have been traced to the Fertile Crescent and the harvesting of wild grains by a people known as the Natufians, roughly 10,000 years ago.