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.
John Humphrey Noyes
While in his second year at Yale Noyes made what he considered a major theological discovery. While attempting to determine the date of the second coming of Christ, Noyes became convinced that the event had already occurred. His conclusion was that Christ’s second coming had taken place in 70 AD and that therefore "mankind was now living in a new age."