There's always room for discussion, but perhaps these previous topics found through the search function will answer your inquiry.

• In 1991, German Publicist Heribert Illig proposed the "Phantom Time Hypothesis", claiming that the years between 614 to 911 never happened, but were invented later. What's the biggest crackpot theory in your field of history?

• Is there any credibility to the Phantom time hypothesis

• Is there a 200 year time discrepancy during the middle ages?