Researchers agree that they can probably all be traced back to one ancestral language, called Proto-Indo-European (PIE). But for nearly 20 years, scholars have debated vehemently when and where PIE arose.
Two long-awaited studies, one described online this week in a preprint and another scheduled for publication later this month, have now used different methods to support one leading hypothesis: that PIE was first spoken by pastoral herders who lived in the vast steppe lands north of the Black Sea beginning about 6000 years ago. One study points out that these steppe land herders have left their genetic mark on most Europeans living today.
The studies’ conclusions emerge from state-of-the-art ancient DNA and linguistic analyses, but the debate over PIE’s origins is likely to continue.