Why did many strange natural phenomena occur when ancient dynasties changed?

We know that ancient China was an agricultural society. Agricultural life is a life that relies on agricultural production. In ancient times, the level of agricultural technology was not high, and people often had to rely on the weather for food. If the natural conditions are good and the weather is favorable, the grain yield will be high. On the contrary, if the natural conditions are not good and there are many natural disasters, then the grain output will be reduced.

When food production decreases, landowners who possess resources will take the opportunity to annex large amounts of land. He does not need to rob, because for ordinary farmers, if their production is not good, they cannot pay the rent, or they cannot repay their debts, they naturally have to use the little land they have to mortgage it, so land annexation naturally occurs.

In addition to annexing, landowners also hoard. When food is scarce, he hoards it and naturally sells it at a higher price. And as a result, ordinary people will be even more miserable.

Under such circumstances, ordinary people will always rise up and take risks. First, they gather in the mountains and forests to become bandits, just like the Green Forest Army, Red Eyebrow Army, and Wagang Army. When the bandits reach a certain stage and become more powerful, they will think of rebelling and taking over the world.

And those powerful landowners will also form a team at this time to develop their own power in the name of "suppressing bandits". As a result, this caused chaos in the world. The result of the great chaos in the world was the change of dynasties.

From the above analysis, we can see that natural disasters are often the inevitable cause of dynasty changes.

And all those weird natural phenomena also appear when natural disasters break out. For example, the big green snake mentioned in "The Romance of the Three Kingdoms" fell from the beams of the palace. When there is a severe drought and the fields are barren, it is actually a normal thing for a big snake to crawl into the palace and eventually fall off the beam.