Most likely this has been asked before, so please forgive and redirect me. Aside from the Gospels, what does the world offer up that there was a man named Jesus, who was from Nazareth, who was believed IN HIS TIME to be the Christ and was executed by order of the Prefect Pontious Pilate?
Quite a bit. It bears noting that, based on the standards of evidence to prove someone existed in that period and before, we actually have better evidence for Jesus than we have for a whole boatload of other figures whose existence is less contentious. Most notable amongst these is of course Best Carthaginian, Gisgo. I commend to your attention this section of the FAQ.