The believe the end times have already happened is Preterism.
"Preterism is the view that all of the prophecies concerning the end of the age occurred in 70AD and there is no End-Time events on the horizon. Everything in the world is getting better until it is all Christianized. This view of Scripture was compiled by a Jesuit Priest (Jesuit Luis de Alcazar 1614) during the Counter Reformation, to combat the claims of the Protestants who believed the Pope was the Antichrist."
http://www.understandingbibleprophecy.org/2017/02/12-reasons-preterism-is-false-teaching/