14: 1874 : Memorable for being the first of a long line of dates posited for the End of the World by the Jehovah's Witnesses.
15: 1881 : Another estimated apocalypse by the Jehovah’s Witnesses, and also by pyramidologists who used the peculiar geometry of the Great Pyramid to extrapolate various world events using a form of numerology. The renowned 16th century seer Mother Shipton was also said to have predicted: “The world to an end shall come, in eighteen hundred and eighty one” That this verse was subsequently proven to be fraudulent did not deter the credulous few from engaging in the now fully-fledged custom known as millennial panic.
Looks like they missed some of the big ones like 1914 and 1925! Oh well. But on a serious note to any Jehovah's Witnesses reading this; why do you follow a false prophet who proclaims false prophecies time and time again? I mean, don't you find it interesting that "Jehovah's organization" made it on this list?