She is said to have taught the art of tilling the earth, and sowing corn, and making bread. […] To him the Egyptians were indebted for the flourishing state of their arts and commerce. […] Prometheus was venerated as the inventor of many useful arts. […] He taught them the art of writing, gave them laws, and instructed them in astronomy, geometry, medicine, and other sciences. […] Who taught the art of tilling the earth, raising corn, and making bread?