Jewish historian Flavius Josephus refrences Jesus
Here is a historian who didn't believe in Jesus but still referenced him twice in his writings.   Book 18  Chapter 3  3. 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 both many of  the Jews and many of the Gentiles. He was [the] Christ. And when  Pilate, at the suggestion of the principal men amongst us, had condemned  him to the cross, those that loved him at the first did not forsake  him; for he appeared to them alive again the third day; as the divine  prophets had foretold these and ten thousand other wonderful things  concerning him. And the tribe of Christians, so named from him, are not  extinct at this day.   Book 20  Chapter 9  1. AND now Caesar, upon hearing the death of Festus, sent Albinus into  Judea, as procurator. But the king deprived Joseph of the high  priesthood, and bestowed the succession to that dignity on...