People have said that about the end of the world for thousands of years.
365 CE: Early French bishop Hilary of Poitiers announced the end of the world would happen during this year.
April 6, 793 CE: Spanish monk Beatus of Liébana prophesied the Second Coming of Christ and the end of the world on that day in front of a large crowd of people.
1260, 1290 & 1335 CE: After his 1260 prediction failed, the followers of Joachim of Fiore rescheduled the end of the world to 1290 and then again to 1335.
1586 CE: Mathematician and astronomer Regiomontanus predicted the end of the world during this year.
1600 CE: Martin Luther, a German priest and professor of theology known for starting the Protestant Reformation, predicted the end of the world would occur no later than 1600.
1688 CE: Mathematician John Napier calculated the end of the world would be this year based on calculations from the Book of Revelation.