The Canterbury Tales
Contrary to popular belief, Shakespeare’s works aren’t in Middle English. They’re written in what’s called Early Modern English, which is sort of a watered-down version of Middle English that people were using in the Tudor period. The Canterbury Tales, however? THAT’S written in actual Middle English, which becomes abundantly clear when you’re supposed to read "The Wife of Bath" by Friday but can’t make it through one single line without looking up a word or phrase.