Do you think that our languages came from one source & if it is do you think we can restore that kind of unity

our languages have so much in comman so most likely it may came from the same source may be it was one languges that took different cources with different groupes of peoble what do you think about that
and if you think that do you imagine that people will come to an understanding to go all of them to a common language and let go of every ones drama about legacy and history