German historian Heribert Illig says the Dark Ages never happened. His Phantom Time Theory says that the years AD 614-911 did not ever occur, and that the current year is actually 1740. The basis for this one is the difference between the Gregorian and the Julian calendars. In theory, when the Gregorian calendar was introduced in 1582, there should have been a 13-day difference between it and the Julian calendar, one for each 100 years it had been around. But, it was only 10 days off, so the 300 years we thought happened, didn’t.