Gunnar Heinsohn was a German author, sociologist, economist, and professor emeritus at the University of Bremen. He released an intriguing presentation on chronology and how 700 years appear to have been added to our timeline in the 1st century amidst worldwide cataclysms and the rise of Christendom

https://www.youtube.com/live/guoXMbBYwZw?si=yarqx9YWDYzTCsgl