None of the New Testament was written till at least 50 years after Jesus died. Some event can happen in the world today and be broadcast to the world and you'll still get endless different opinions, conspiracy theories etc. within a few days of it happening. So a minor event two thousand years ago in an age when the population was vastly more uneducated/ignorant/credulous/manipulable than today could be written any way you want five minutes after it happened. Fifty years later and it's guaranteed to contain as much truth as any fairy story, which is really all any religion is.