“There is not a single contemporary historical mention of Jesus, not by Romans or by Jews, not by believers or by unbelievers, during his entire lifetime. This does not disprove his existence, but it certainly casts great doubt on the historicity of a man who was supposedly widely known to have made a great impact on the world. Someone should have noticed.”
Source : Dan Barker (1992). “Losing Faith in Faith: From Preacher to Atheist”, Freedom from Religion Fndtn