Three Critical Time Points (2)

However, it was best not to cause a huge change in the original history, lest it cause some unknown changes to the current timeline. In this way, the more suitable way was to participate in the major changes in the original history or replace a certain person's position at that time point.

"According to the scale of the Primordial World and the Boundless Chaos Sea, what can be called a major change should be the 19 Great Chaos Calamities."

Cui Heng quickly had an idea. Then, he thought, "However, at least three of the 19 Chaos Calamities have clearly changed the situation of the Primordial World and the Chaos Sea."

It was also the time when something happened to the Immortal Ancestors.

The fourth and 11th Chaos Calamities, respectively, resulted in the deaths of the Immortal Ancestors. There was also an Immortal Ancestor who was injured by the Dao during the 16th Chaos Calamity and disappeared.