I recommend a series of TV programs by Terry Jones of “Monty Python” fame. He is
a real Historian, did several series for BBC television. One is all about the Middle
Ages. It has a lot of stuff we learned, and still learn wrong in school. The peasantry
weren’t illiterate oafs; the church wasn’t particularly holy and noble; Knights didn’t
rescue Damsels in Distress (that myth was invented by the Victorians a little over
a hundred years ago).
Terry Jones also did a series on the Crusades (guess who were the bloodthirsty murderous
monsters in the story) and a series on the Barbarians. Turns out the bloodthirsty
murderous monsters in that story were the Romans -- researchers tell us that almost
all of the peoples described by the Romans as “barbarian” were more civilized (nicer,
less violent) and more technologically advanced than the Romans were. But almost
all the writings we have from those times were Roman Catholic Church writings and
their histories were wildly one-sided and inaccurate.