Another Inneresting One

Where Did Ancestor Of Indo-European Languages Originate?

Hindi, Greek among other Indo-European languages first emerged 6500 yrs ago

‘Indo-European’ languages first emerged 6,500 years ago

I've always had an interest in how related languages evolved and how linguists know they are related. I presume when language first arose, humans must have been a single unit, probably still in Africa and there would have been only one language, which subsequently evolved into the multitude of languages spoken by homo sapiens. I guess I should have taken that linguistics class back in the day.