Second Coming
The Second Coming (sometimes called the Second Advent or the Parousia) is a Christian and Islamic belief regarding the future (or past) return of Jesus Christ after his ascension to heaven about two thousand years ago. The idea is based on messianic prophecies and is part of most Christian eschatologies.
Olivet Discourse
In modern times, a popular (but far from unanimous) opinion is that Jesus in the Olivet Discourse is using the apocalyptic language of his time "symbolically, " as did many Jewish prophets. Nevertheless, throughout history there have been many groups who read the discourse literally. Christian thought continues to include groups who say that "the end of the world is near", some even giving exact dates which have since come and gone without an intervening end of the world. Some Christians believe that predictions of several events are related: the second coming of Jesus, the war of Armageddon, the arrival on earth of the Antichrist, the Tribulation, the Rapture, some horrendous natural disaster, etc. Jewish, Islamic, psychic and occult predictions have also been offered as well. Some very prominent individuals have been consistently wrong when they predicted the end of the world. End-of-the-world predictions have been common throughout Christianity and other religions for almost 2000 years.