There may be a number of ways to answer this question, but it would appear to me that a fruitful starting place is the Christian claim that Jesus, the first century carpenter, died and subsequently rose from the dead. I’d start here because Christians base everything on this being true. The claims that Jesus’ body was no longer in the tomb and that he had been seen alive are foundational to Christian beliefs. Scrutinise them, consider the explanations, explore the alternatives, look at the impact on people at the time. Evaluate the counter claims, conspiracy theories, tampering of documents, and challenge the evidence. Public scrutiny and debate are a good thing if they’ll help us get to the truth of the matter.