The encirclement at Sedan during the Franco-Prussian War. (French generals gallantly take the advice of the Empress Eugenie. Really.)
Handing Joan of Arc over to English so they could kill her. After she saved their country.
Thinking Woody Allen did nothing wrong, that he is unfairly criticized by puritanical Americans.
Powdered wigs as fashion statements.
Gaudy, gilt, gold-leaf furniture. Roccoco style. In fact, overdecorated rooms in general.