>>84594No one knows for sure. There were no historians then, and myths and legends about the origin of people were often exterminated in the religious struggle.
It is possible that different groups of aliens from other planets with their genetic engineering took part in the creation of different groups of people.
Maybe humans were genetically engineered from apes to work in the mines.
By the way, nothing prevents some groups of people from living for five hundred years like Greenland sharks do. It's possible with a good human genetic code.
It's not done en masse because slave miners didn't need to be given such a gift, the aliens thought