Some people believed that, according to the ancient Mayans' long-count calendar, the world was going to end on Dec. 21, 2012. Did you?

There have been many other predictions of doomsday, including radio evangelist Harold Camping's claims that the world would end on May 21, 2011. When that day came and went without an apocalypse, Camping set another date for doomsday, Oct. 21, 2011. 

He later apologized in a statement on his Family Radio website: "We have learned the very painful lesson that all of creation is in God's hands and He will end time in His time, not ours!" "We humbly recognize that God may not tell His people the date when Christ will return, any more than He tells anyone the date they will die physically."

Have you ever believed in a prediction that the world would end on a specific date? Why or why not?