There are some pretty fun conspiracy theories about the Dark Ages. https://en.wikipedia.org/wiki/Phantom_time_hypothesis https://en.wikipedia.org/wiki/Phantom_

There are some pretty fun conspiracy theories about the Dark Ages. https://en.wikipedia.org/wiki/Phantom_time_hypothesis https://en.wikipedia.org/wiki/Phantom_time_hypothesis https://en.wikipedia.org/wiki/New_chronology_(Fomenko) https://en.wikipedia.org/wiki/New_chronology_(Fomenko) A variant, or generalization, of the Phantom time hypothesis (to be clear, a conspiracy theory with no basis in fact) is that the reason 'so little' happened during the Dark Ages is that they didn't actually exist. That is, some number of centuries between the 5th and 14th were added to the calendar, but didn't actually happen.