History of agriculture
Wild grains were collected and eaten from at least 20,000 BC. From around 9500 BC, the eight Neolithic founder crops – emmer wheat, einkorn wheat, hulled barley, peas, lentils, bitter vetch, chick peas, and flax – were cultivated in the Levant. Rye may have been cultivated earlier but this remains controversial. Rice was domesticated in China by 6200 BC with earliest known cultivation from 5700 BC, followed by mung, soy and azuki beans. Pigs were domesticated in Mesopotamia around 11,000 BC, followed by sheep between 11,000 BC and 9000 BC. Cattle were domesticated from the wild aurochs in the areas of modern Turkey and Pakistan around 8500 BC. Sugarcane and some root vegetables were domesticated in New Guinea around 7000 BC. Sorghum was domesticated in the Sahel region of Africa by 5000 BC. In the Andes of South America, the potato was domesticated between 8000 BC and 5000 BC, along with beans, coca, llamas, alpacas, and guinea pigs. Bananas were cultivated and hybridized in the same period in Papua New Guinea. In Mesoamerica, wild teosinte was domesticated to maize by 4000 BC. Cotton was domesticated in Peru by 3600 BC. Camels were domesticated late, perhaps around 3000 BC.
Tell Aswad
Understanding of the role of Tell Aswad in the beginnings of farming has been complicated by changes in dating. Originally it was thought to be an example of one of the oldest sites of agriculture with domesticated emmer wheat dated by Willem van Zeist and his assistant Johanna Bakker-Heeres to the PPNA at 7600-7300 uncal BC (about 9000 cal BC). The claim is based on the discovery of enlarged grains, absences of wild grains and on the presumption that the site was beyond the usual habitat of the wild variety of emmer wheat. Flax seeds were present, and fruit, figs and pistachios, were found in large quantities. Stationary containers of mud and stone were found with carbonized grain found on the interior of one designating them as silos. Finally, reeds were widely used, especially as reinforcement in the architecture, but also for mats and baskets and perhaps as bedding or fodder. Despite the (apparently) early date of domesticated plants, Jacques Cauvin considered that Aswad was not the center for the origin of agriculture, stating that its first inhabitants "arrived, perhaps from the neighboring Anti-Lebanon, already equipped with the seeds for planting, for their practice of agriculture from the inception of the settlement is not in doubt. Thus it was not in the oasis itself that they carried out their first experiments in farming."