>>24653368
Heinsohn felt confused by comparing supposed accepted historical timelines when they lead to the same types of architechture being repeated three times over the first millenium AD.
He investigated further and found more evidence from such things as jewelery and roof tiles or the lack of sewers where there should have been sewers.
It led him to conclude that somehow several hundred years perhaps as much as 700 had been invented in the first millenium between I think 200 and 930 when there was evidence from a vast dark soil layer of some huge cataclysm that devastated an immense area from britain to egypt and beyond all the way out through the steppes which for some reason had been ignored.
Here he outlines his ideas.
https://www.youtube.com/watch?v=c876lPZ-UZU
You can find his translated writings on q-mag
https://www.q-mag.org/gunnar-heinsohns-latest.html
He passed away a few years ago so I'm curious how many other have extended his work in that time.