In current scholarship, “apocalyptic” denotes a literary genre, a world-view or the belief common among first-century Jews (and frequently, though not always, expressed in the writings of the genre) that their history, and with it world history, was reaching a great climax. I use the word in the last sense in particular. “Apocalypse” denotes either writings belonging to the apocalyptic genre (especially the Book of Revelation, also known as the Apocalypse) or the climactic historical event itself.