Cereal grains are currently the most important nutritional component of the human diet—and for thousands of years grains have been recognized as staples—necessary foods—and extolled as “the staff of life.” In Roman times Ceres was the goddess of agriculture. The gifts offered to Ceres at festivals were referred to as cerealia. Since the most important gifts offered were wheat and barley, these grains naturally became known as cerealia or cereal.  The value of grains is reflected by common sayings such as: “The greatest thing since sliced bread,” signifying the absolute best, “bread and circuses” refers to keeping people happy, “cash” is called bread or dough, and “breaking bread” speaks of a sense of sharing.