Breakthrough?

A slight smile appeared on Robin's face when he heard Wind Emperor Alexander's question, and then began to speak, "As far as I know, the founding of your empires came tens of thousands of years after the start of the cultivation era, as 4 Geniuses managed to discover the Major laws of the four most visible and abundant paths that existed in nature: fire, water, plants, and wind... And whoever discovers a major Law will not find it very difficult to discover the rest of the advanced levels of that Major law, so I can imagine that the same four individuals who discovered those Major laws were able to reach at least an intermediate sage level before they died...