We do know that Israel was occupied territory and that around the time of Jesus roads were lined with Jews being crucified. According to a documentary I saw they crucified around 30,000. I do not know why, but if I were a Jew living at the time its a question I would have asked "Why us, and have we done something wrong?" Significantly the gospels do seem to formulate an answer, and this seems like evidence Jesus is real. Each of the four argue that the Son must suffer for the good of the world and also learn obedience through suffering. Jesus in the gospels preaches peacefully living under Roman rule. I think that there is at least one Jesus, possibly more than one. Jesus is identified in the gospels as the Son of Man, a term attributed to the Jews by the prophets. Now thousands of years later we may not have Jesus birthday and address, but we know his way of life and answer to violence in the form of the Beattitudes. These I think are the strong written evidence of him rather than quotes from Josephus or Tacitus or other historians of antiquity, those and his other words.