The Book of Revelation, often known simply as Revelation or the Apocalypse, is the final book of the New Testament and occupies a central place in Christian eschatology. Written in Koine Greek, its title is derived from the first word of the text, apokalypsis, meaning "unveiling" or "revelation." The author of the work identifies himself in the text as "John" and says that he was on Patmos, an island in the Aegean, when he was instructed by a heavenly figure to write down the contents of a vision. This John is traditionally supposed to be John the Apostle, although some historical-critical...