According to Jared Diamond's Guns, Germs and Steel (pp 125-126), the domestication of local grains (e.g. wheat, barley) and pulses (e.g. peas, lentils) lauched food production (farming) societies in ...
Buckwheat is a very useful crop, resulting in healthful food. It was (and is) extremely popular is Eurasia (especially Russia and China). However, despite the fact that - as per Wiki - it was one of ...