[Tallguy]

20,000 years ago ape men learn to genetically modify Corona viruses from the alien monolith.

[Clutch Martin]

“20,000 years ago ape men learn to genetically modify Corona viruses from the alien monolith”

Because of the lack of writing or communication or warning for that matter, the prehistoric beings that were around the monolith probably touched the surface of the monolith which was full of pathogens many of which were a Coronavirus mutation.