The Zwickau prophets arrive in Wittenberg, disturbing the peace and preaching the Apocalypse.

The Zwickau prophets were three men of the Radical Reformation from Zwickau in the Electorate of Saxony in the Holy Roman Empire who were possibly involved in a disturbance in nearby Wittenberg and its evolving Reformation in early 1522.

Wittenberg, officially Lutherstadt Wittenberg, is the fourth-largest town in the state of Saxony-Anhalt, in the Federal Republic of Germany. It is situated on the River Elbe, 60 kilometers (37 mi) north of Leipzig and 90 kilometers (56 mi) south-west of the reunified German federal capital city of Berlin, and has a population of 46,008 (2018).

Apocalypse is a literary genre originating in Judaism in the centuries following the Babylonian exile but persisting in Christianity and Islam. In apocalypse, a supernatural being reveals cosmic mysteries or the future to a human intermediary. The means of mediation include dreams, visions and heavenly journeys, and they typically feature symbolic imagery drawn from the Jewish Bible, cosmological and (pessimistic) historical surveys, the division of time into periods, esoteric numerology, and claims of ecstasy and inspiration. Almost all are written under pseudonyms, claiming as author a venerated hero from previous centuries, as with the Book of Daniel, composed during the 2nd century BCE but bearing the name of the legendary Daniel from the 6th century BCE.

December 27 is the 361st day of the year in the Gregorian calendar; four days remain until the end of the year.