The Chinese culture is more than 5,000 years old. During this long period of time, many vivid myths have been passed from generation to generation. The invention myths featured on this set of stamps are: (1) Sueirenjy obtaining fire by digging wood, (2) Fushijy drawing Pa-Kua, (3) Shennungjy making agricultural tools, and (4) Tsangjier inventing characters..