What impact might this information have on assigning a date to the origin of humans

What impact might this information have on assigning a date to the origin of humans

If we maintain a strict biological definition of “species”, H. sapiens and H. neanderthalensis were NOT separate species as they successfully interbreed.  What impact might this information have on assigning a date to the origin of humans?  Are there any other implications?  Cite your source(s) at the end of your post.

Solution preview

The debate about the time from which humans existed rests solely on the determination of whether or not H. Neanderthals were separate species from Homo sapiens or they were a subspecies of the same. The uncontested fact is that Homo sapiens are the direct ancestors of modern day man and aren’t extinct………………….