The world will end

Thiota : prophet
Declared that the world would end this year.
With a good priming of the cultural pump from the so-called "pseudo-prophetess" Thiota in 847, Medieval Europe was psyched for the second coming and the start of the Millennium, the 1,000-year reign of Jesus and the righteous mentioned in the Book of Revelation. That Thiota later admitted she was in the apocalypse biz strictly for the cash should have clued people in on how seriously they should take end-of-the-world rants.

Richard Abanes, End-Time Visions. Four Walls Eight Windows, New York, 1998.