Farming origins gain 10,000 years Wild types of emmer wheat like those found at Ohalo were forerunners of today's varieties Humans made their first tentative steps towards farming 23,000 years ago, much earlier than previously thought. Stone Age people in Israel collected the seeds of wild grasses some 10,000 years earlier than previously recognised, experts say. These grasses included wild emmer wheat and barley, which were forerunners of the varieties grown today. A US-Israeli team report their findings in the latest Proceedings of the National Academy of Sciences. The evidence comes from a collection of 90,000 prehistoric plant remains dug...