Anthropology

We see facts we cannot explain, so we speculate about possible reasons for what we are seeing.

Then we test it out with rigorous research.

The "perhaps" is not just for fun, it is the beginning of the scientific method.

Our most brilliant scientists have such incredible imaginations and thought processes they can
connect dots like most others cannot. And explain phenomenon others could not figure out.

Yes I know the time line of Vikings, etc but the point is that current DNA testing is overturning previous
theories that were considered fact.