Original European Language was not Indo-European. Who brought it in first?

[Sonnenburg]

Did horse riding people of Haplogroup R1a bring Indo-European Language into Ancient Europe?
Did Later Day Invaders speaking Basque Language and belonging to a cousin-haplogroup R1b modified that Indo-European Language they encountered when R1a and R1b met?
Did Basques survive the ‘modification’ by escaping to a remote mountainous area?
Did Sardinians belonging to Haplogroup I2 survive by escaping to a remote Mediterranean Island?
is Modern Indo-European Language just mispronunciation of the Language people of Haplogroup R1a spoke?
What was the origin of Ancient European Language spoken by people of Haplogroup I1 with words : sword, shield, north, mast, Kiel, ship, etc..
is Kalevi Wiik right?

 

[davef]

Well, I think it would've been the original hunter gatherers of Europe who were there before any other population who settled there like the farmers and Indos. They spoke a language, so essentially their language was the first.