Consider the Evidence
1) It is historically well-documented that Jesus was crucified, in biblical and non-biblical sources.
2) The resurrection of Jesus the Messiah was a fulfillment of many Old Testament prophecies (cf. Torah-Tawrat Isaiah 53, Psalm 16, Psalm 22, Psalm 110 and many others).
3) The biblical documents (the 4 gospels of the New Testament, or Injeel) are as credible as any other historical sources of information, at least leading up to the accounts of the resurrection. They all say that Jesus foretold his death and resurrection, and that the disciples disbelieved it.
4) The biblical accounts give us (almost excessive) details that say he was crucified, died, was taken off the cross, was placed in a particular tomb, and that Roman guards were placed there to prevent anyone from stealing his body (under pain of death if they failed). There is no reason to doubt the accounts up to that point (again, a great many of the details of the four gospels have been historically verified regarding other facts.)
5) Setting aside the biblical reports of the resurrection for the sake of scrutiny, we still have to make sense of the other solid facts: a) Jesus's body disappeared and has never been recovered; b) The Roman guards would not have allowed his body to be stolen, and all the authorities wanted him dead and gone for good. c) The disciples had no faith that he would rise from the dead, and they had no reason to even try to steal a dead man's body in light of who they had expected him to be—an invincible Messianic deliverer. The body of a dead Messiah was no good to them at all.
6) AND, setting aside the biblical reports of his post-resurrection appearances to them, it is a historical fact that the disciples at least believed that Jesus rose from the dead; the New Testament book of Acts (Injeel) tells us that having first been in shock over the event, they later began to proclaim his resurrection to the masses at the risk of their own lives and well-being, being under constant threat from the same authorities that put Jesus to death. This would be very hard to do if they knew it was a hoax.
7) They did this in public. Had anyone been able to produce the body (other than the disciples) they would have, in order to expose the folly of the disciples' preaching, as they were gaining a sizable following that greatly disconcerted the authorities.
8) Their belief in Jesus's resurrection was the central point of the disciples' preaching, teaching and writing, which they continued to do until they were all martyred for it one-by-one (except John the Apostle who was exiled). They believed the resurrection so strongly that they all gave up their livelihoods and their very lives to proclaim it to the world. Point: People don't give up everything with no hope of gain for what they know is a lie. They just don't. The disciples of Christ gave up everything and gained nothing by it on this earth.
9) A conspiracy of that magnitude is almost impossible to hold together, with that many 'conspirators' involved. In the end, somebody eventually cracks to save their own skin. None of them did. Either it was true or someone deceived them completely, and even pretended (convincingly) to be the risen Jesus. But who? Who could have? Who would have?
10) The Christian faith mushroomed throughout the Roman Empire despite waves of persecution against Christians. Unlike Islam, it spread without military force or any sort of violence perpetrated by Christians for three whole centuries. It was literally unstoppable, but why?! Because it was credible, and a thousands of average people believed it even though they had nothing to gain and everything to lose during those three centuries. There is no other logical way to explain the growth of Christianity but that Jesus rose from the dead and appeared to the disciples and "more than 500 brethren at one time". (1 Cor. 15)
11) As Paul the Apostle expressed (1 Cor. 15:14) if Jesus did not rise from the dead, there is no coherent meaning to the Christian faith. The entire belief system disintegrates. Paul and most of the other apostles were executed, and men simply do not go to such lengths for what they know is false. So there is no more reasonable explanation than the resurrection.