[nonbel]

Very interesting, I hadn't heard of this issue.

Others have reported issues with archaeological and historical evidence from this same period, proposing that up to 700 years of mainstream chronology shouldn't be there: https://news.ycombinator.com/item?id=19745763

Especially interesting from your link is that all the royal lines of Europe trace their origins to Charlemagne, who according to these alternative chronologies was probably a myth.