Phys.org reports that wheat for baking bread (Triticum aestivum) may have first been grown some 8,000 years ago in Georgia. Genetic studies of modern wheat plants and wild grasses indicate that domesticated wheat and wild goat grass were mixed in the South Caucasus and the Caspian Sea region. This hybrid plant eventually became bread wheat, explained Nana Rusishvili of the Georgia National Museum and her colleagues. They examined charred grains recovered from Gadachrili Gora and Shulaveris Gora, two Neolithic village sites in Georgia. Because charred grains of bread wheat look similar to durum wheat and other wheat seeds, the team...