Bit of an exaggeration to say "mostly fictional" isn't it? Boece published his fictional 900-year history only 30 years after Columbus set off around the world.

Bit of an exaggeration to say "mostly fictional" isn't it? Boece published his fictional 900-year history only 30 years after Columbus set off around the world. In any case, Trevor-Roper published some of the papers this book was based on back in the 1970s and Boece's work wasn't the only record we have of that period of time.