Well, it is not known if this is true or not. But, in the bible it says that it was destroyed by a "rain of fire". So, pretty much it says that fireballs fell from the sky and destroyed the city.
It was Babylon, NOT Jerusalem. By using the year 607B.C., they are able to match up a time prophecy that they have taken from the bible to show that Jesus became king of the heavens in the year...