Better cancel those holidays. We now have a date for Armageddon, and it's a week on Tuesday - August 22.

This information comes from no lesser source than the Wall Street Journal, where Bernard Lewis, President Bush's favourite historian, provides the details.

"In Islam, as in Judaism and Christianity," the professor writes, "there are certain beliefs concerning the cosmic struggle at the end of time - Gog and Magog, anti-Christ, Armageddon, and for Shiite Muslims, the long-awaited return of the Hidden Imam, ending in the final victory of the forces of good over evil, however these may be defined.

"Mr Ahmadinejad [the Iranian president] and his followers clearly believe that this time is now, and that the terminal struggle has already begun and is indeed well advanced. It may even have a date, indicated by several references by the Iranian president to giving his final answer to the US about nuclear development by August 22. This was at first reported as 'by the end of August', but Mr Ahmadinejad's statement was more precise."