The thesis of my PhD (1999) connercs the end of the world (I have not come across any other phd\'s on this theme.) One of the fascinating questions I came across connercs the incorrigibility of end dates. There have been so many end dates since the first millennium and when they pass, as they always do, we simply shift the end date forward-incorrigible, but very interesting. So I asked: what\'s going on here?The answer is quite a story to tell .