The historical writings of Matthew, Mark, Luke, John, Paul and Peter are among the best preserved and attested to of all ancient writings. However, for those who seek additional corroboration of the historical Jesus, one of the best sources is Josephus. This Jewish historian, who was born in Jerusalem in AD 37 and died in Rome in AD 97, mentioned Jesus by name and made many allusions to him in the book, The Antiquities.
Concerning Jesus, Josephus wrote: “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 among 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 on the third day; as the divine Prophets had foretold these and 10,000 other wonderful things concerning him. And the tribe of Christians, so named from him, are not extinct at this day.” (Book 18, Chapter3)
Also paralleling the New Testament is a body of literature called the Apocrypha. While never included in either the Hebrew or Christian Bible, they echo similar evidences about Jesus and his times and his miracles at his teachings. Further there are the writings of Tacitus (ca. AD 56 – ca. 117) that also mention Christ, crucifixion by Pontius Pilate and other reports of the activities of Christians, followers of Jesus Christ. There is no doubt from the historical records that Jesus was a real person.
However, if you ask believers how they know that Jesus was a real person, your answer is likely the chorus from a favorite Christian hymn, “You ask me how I know he lives. He lives within my heart.” The hundreds of millions of followers of Jesus over the centuries is more than enough evidence in itself that Jesus is for real. Is Jesus a real figure for you? Do you know him personally as your Lord and Savior? God wants you to know him. (John 3:16) If you would like to learn more, please check out the answer to the question: How does one become a Christian?