It seems likely that he was an actual person. It is not verified, nor is it verifiable. This is the kind of shit Bible apologists like to whip out as if it confirms their beliefs. Almost to a person, people who refer to the Historicity of Jesus Wikipedia page use terms like "verified fact" in the same breath. If you're not intending to be a Bible apologist, you should probably take a different tack.

Nobody (especially the apologist) gives a shit whether some rando Nazarine created a religious movement. They were a dime a dozen. What the people who bring this up actually care about is that said Nazarine is the Son of God and the Christian Messiah. Just because he existed, doesn't mean he is anything of the sort, or that God even exists. There is literally no other useful knowledge to be had in pointing out that Jesus was probably a real person, so if you're hell bent on making sure everybody knows he was so totally super-duper real guys, then everybody figures you must have an agenda.