In the early 1800's, a woman named Joanna Southcott predicted that the world would end on Oct. 19, 1814. She amassed tens of thousands of followers. Of course, it didn't happen. She left a box that she claimed held the secrets to the world. 

It was opened after her death & contained some books, a nightcap, a horse pistol, & a lottery ticket. Moral of the story: "we're still here."!!!