The ancient Incas grew potatoes on terraced farms in the Andes Mountains around 200 B.C. Spanish conquistadors brought the potato from South America to Europe in the 1500s. Since then, the potato has helped keep peasants from starving during times of famine, fed armies, and is today the world's most popular vegetable. The Biography of Potatoes underlines the importance of this source of nutrition throughout human history. Topics include - What is a commodity? - the origins of the potato plant - the Irish potato famine and subsequent Irish immigration to North America - new varieties of potatoes and potato farming today - growing, harvesting and selling potatoes all over the world - products made from potatoes, including French Fries and potato chips - pests and diseases that threaten this essential crop Teacher's guide available.