Legend has it that Shennong is the ancestor of the Chinese nation. He was born in Penglai Mountain in the middle of the ancient East China Sea, where he studied farming, herbs, fishing and alchemy. He invented agricultural technology, taught people to grow whole grains and let people live without food. Therefore, he was honored as the god of agriculture. According to legend, Shennong also invented many drugs and made great contributions to the development of medicine.
Emperor Yan was the leader of the ancient tribal alliance in China, and was honored as one of the ancestors of the Chinese nation. It is said that the people of Yandi * * thrived in the Yellow River valley and established the ancient civilization of China through scientific and technological innovation. According to the Records of the Historian, Emperor Yan carried out the expedition of "Fusang two states, ten years of famine" around the world, and made the first complete astronomical observation. This provides very important information for constellation observation in ancient China.
To sum up, although Shennong and Yan Di are both very important mythological figures in ancient China, they are not the same person, representing the development of agriculture and medicine, civilization and science and technology respectively.