In addition we have the record of Josephus, a Jewish writer who was not a Christian either, who records the life and death of Jesus of Nazareth.
He wrote this:
Now there was about this time Jesus a wise man, if it be lawful to call him a man; for he was a doer of wonderful works, a teacher of such men as receive the truth with pleasure.
He drew over to him many Jews, and also many of the Greeks. This man was the Christ.
And when Pilate had condemned him to the cross, those who had loved him from the first did not forsake him for he appeared to them alive on the third day, the divine prophets having spoken these and thousands of other wonderful things about him.
And even now, the race of Christians, so named from him, has not died out.