John Napier calculated the end of the world would be in 1689



John Napier : physicist, astronomer, astrologer, mathematician
This mathematician calculated the end of the world would be this year based on calculations from the Book of Revelation


Weber, Eugen (1999). Apocalypses. Cambridge MA: Harvard University Press.


http://books.google.ru/books/about/Apocalypses.html?id=CQoLAAAACAAJ&redir_esc=y