Rediscovered this old story on "ultraconserved words" that have supposedly retained their meaning and pronunciation across languages for millennia: https://www.washingtonpost.com/national/health-science/linguists-identify-15000-year-old-ultraconserved-words/2013/05/06/a02e3a14-b427-11e2-9a98-4be1688d7d84_story.html
And then this article from Language Log that casts some doubt on the flimsy theoretical framework behind the sensationalized story: https://languagelog.ldc.upenn.edu/nll/?p=4612