If a group of fundamentalist Christians is right, you won't live more than another nine months.

Harold Camping, leader of the ministry Family Radio Worldwide, has concluded after careful study of the Bible that the world will begin to end on May 21, 2011. It will actually take several months for the process to be complete, but Camping is certain that by October it will all be over, and his group is doing their best to warn everyone.

The sect members are spreading their doomsday message using billboards, travelling caravans of RVs holding volunteers who pass out relevant pamphlets, and bus-stop benches, according to the Associated Press. "Cities from Bridgeport, Conn., to Little Rock, Ark., now have billboards with the ominous message, and mission groups are traveling through Latin America and Africa to spread the news outside the U.S," the AP reported.

Fundamentalist Christians have a long and colorful history of searching for — and mistakenly believing they have found — clues about when Jesus would return to earth and bring about the final judgment. In the early 1800s farmer William Miller concluded from a Bible study that the world would end April 23, 1843. It did not. [10 Failed Doomsday Predictions] - [Whoops! Failed Armageddon]