1. In the historical legend of China, Shennong was the first person to teach people to farm and try various herbs.

2. The head of the "Five Emperors" in China's historical legends is the Yellow Emperor (others are Zhuan Xu, Yao and Shun).

There is no way to prove whether it was poisoned. In order to study herbs, Li Shizhen often tasted them before he found them.

Now toxic, vomiting for a long time, these people are very dedicated.