The mysterious indicator of the Apocalypse as mentioned in the Book of Daniel and Mark 13. It was mistakenly believed by the writers of the New Testament to be a future event that would be self-explanatory once seen. The truth is it had actually already taken place in Daniel's own time, for it referred to a pagan altar erected in Jerusalem, 168 B.C.E. by King Antiochus Epiphanes. Or at least so states G.A. Wells in his "Historical Evidence for Jesus". (The title is a misnomer).