The Apostles were people who, according to the Bible, were chosen from among the disciples of Jesus to spread his word. The original twelve followed Jesus on his mission to Galilee, where they healed the sick and drove out demons. They include Judas Iscariot, who according to the New Testament betrayed Jesus. Christian mythology also states that many of these twelve became martyrs while defending their faiths in Christianity.
The fact that the original surviving apostles, all eyewitnesses to the resurrection of Jesus, were willing to die for their faith, is the most dramatic evidence that it was not a hoax. It is one thing to die for a religious belief, such as an Islamic fundamentalist or a follower of David Koresh. It’s quite another to die for a known lie.
Like stories about Jesus himself, the story of the apostles is written primarily in the Bible, a document of questionable historical accuracy. There are few extra-biblical accounts of their alleged martyrdom. These stories are best treated with the same skepticism as any other part of the Bible.