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.
Date of birth of Jesus
The date of birth of Jesus is not stated in the gospels or in any historical reference, but most theologians assume a date of birth between 6 BC and 4 BC. The historical evidence is too incomplete to allow a definitive dating, but the date is estimated through two different approaches—one by analyzing references to known historical events mentioned in the nativity accounts in the Gospels of Luke and Matthew, and the second by working backwards from the estimation of the start of the ministry of Jesus.