What was the Rapture, in the end?

The Rapture is defined as the taking away of all "true Christians" from the earth to heaven. Those left behind suffer the tribulation.

This doctrine was invented by a woman in the 18th century. It is a false interpretation of Scripture.

The "rapture" is a term used by those who believe in premillennial dispensationalism.  Other Christians (traditional premillennialists and amillennialists) do not hold to those views.  The "rapture" did not occur on May 21.  Many people have attempted to predict the date of Christ's second coming.  So far, every one of them has been wrong.  God wants us to be about His work, not making those kinds of predictions.

The "rapture" is described in the New Testament in various places as the catching away "in the twinkling of an eye" of true believers to meet the Lord in the air, though no exact date is ever set for it.  For this very reason it is foolish to predict the exact date.  Jesus is recorded as saying no man knows the day nor the hour.  As to the doctrine of the "rapture" being "invented" by a woman in the 18th century, it is possible -- and foretold -- that "knowledge shall be shut up until the last days" -- that is, certain events in the Scriptures remain "sealed" or not understood until those times are at hand.  So it is very possible for devout believers to have divine revelation as to the events unfolding as we draw closer to the second coming of Christ and the culmination of the events of the "latter days."  There are things mentioned in Revelation and Daniel that are now quite clear to us that live in these times that could not have been revealed to either John or Daniel in the times they lived.

What is most important is to be a sincere follower of Christ, born again by His Spirit and making sure we walk and live in a pleasing manner to God.  Then, no matter what we believe about the rapture or the 2nd coming of Christ, we will be ready. 

Like most bibilical predictions, this too turned out to be a dud because the idiots who declare these 'visions' do so against their own belief that is written in their own book.. Most times it's a scam to collect more tithes.