Out of the thirty thousand types of edible plants thought to exist on Earth, just eleven-corn, rice, wheat, potatoes, cassava, sorghum, millet, beans, barley, rye, and oats-account for 93 percent of all that humans eat, and every one of them was first cultivated by our Neolithic ancestors.
( Bill Bryson )
[ At Home: A Short History of ]
www.QuoteSweet.com