The PBS show was about Thera ( Santorini) blowing up. A huge, known event that would have been recorded in written history at the time and should have had some mention of it survive even after 3000+ years. We do have some written history from that time and it was certainly the most impressive event of their time.
Exactly! The Thera explosion caused the Plagues in Egypt (I’m pretty sure there was a PBS special on that, too.) This is probably evidence of Phoenician settlement, and Atlantis was also Phoenician.
Thera/Thira (Santorini) ... most fascinating of places to research and visit in the Greek Isles, IMHO.