"A Dream of John Ball; and, A King's Lesson" by William Morris is a novel published in 1888. It tells the story of a time-traveller who meets the medieval rebel priest John Ball during the Great Revolt of 1381. Through their encounter, Morris contrasts the ethics of medieval and modern worlds, exploring why Ball's dreams of an egalitarian society remain unfulfilled centuries later. Unlike other depictions of the era, Morris portrays the Middle Ages as a golden period of prosperity and happiness. (This is an automatically generated summary.)