A re-evaluation of recent analysis of indo-european.<p>tldr - still leaning toward a common origin c. 8100 years ago in the Turkey-Iran border area, then expanding up into the Caucasus mountains and the steppe grasslands.
<a href="https://www.mpg.de/20666229/0725-evan-origin-of-the-indo-european-languages-150495-x" rel="nofollow">https://www.mpg.de/20666229/0725-evan-origin-of-the-indo-eur...</a>