Probably one of the most well known non-rulers ever is William Shakespeare. Yet there is a body of opinion that claims that he didn't actually exist and another even stronger one that says he certainly didn't write the plays that have historically been attributed to him.
Unlike Christ, Shakespeare came from an age that has left us with a wealth of documentation and records. Yet none of this gives absolute proof of his existence and authorship; at least not proof enough for the doubters.
Basically if someone didn't command an army, rule a country or create artifacts that have survived until the present day, there is little or no chance that there will be absolute proof that they were fact rather than fable.
There seems to be rather more proof for Christ's existence than there is for most itinerant Hebrew philosophers of the same time period, but there is not and cannot be absolute proof.
Furthermore if a document was found tomorrow, that turned out to be an execution order, written by Pontius Pilate, sentencing to death someone called Jesus for Treason or Blasphemy, it would not change the mind of a single person contributing to this thread. Those who think there is sufficient proof would be still of the same mind and those who don't would simply say "How do we know this refers to the same Jesus?" and continue in their skepticism.
