A Brief History of the Apocalypse

This is a fascinating site about all the times the world was supposed to end... and didn't. An example:

Lotharingian computists foresaw the End on Friday, March 25, 970, when the Annunciation and Good Friday fell on the same day. They believed that it was on this day that Adam was created, Isaac was sacrificed, the Red Sea was parted, Jesus was conceived, and Jesus was crucified. Therefore, it naturally followed that the End must occur on this day!

A Brief History of the Apocalypse