In article , Yuri Kuchinsky
wrote:

Linguistic evidence can never prove anything (outside of
linguistics, that is). At best, such evidence can only
_suggest_ some things, which then need to be proven by hard
physical evidence, such as archaeological.

the physical evidence is also fragmentary. consolidating that
information into a historical theory is always a matter of conjecture,
not proof as it might exist in other disciplines.

don't be such an ameteur.