They vanished into oblivion, but not before leaving us a record to decipher

 

The full 2 hr 20 min documentary is up at Amazon Prime. What we call a learning event. There is math, but a patient student of history can work it out. Worth the effort though. One of the most important and compelling looks at the history famous archaeologists (who don’t know from math or science as it turns out) sneer and grin at. 

One more little taste of history you never knew about:

Okay. Just one more teaser: