However, there is no physical or archeological evidence for Jesus, and all the sources we have are documentary. The sources for the historical Jesus are mainly Christian writings, such as the gospels and the letters of the apostles. All sources that mention Jesus were written after his death. The New Testament represents sources from the wide variety of writings in the first centuries AD that are related to Jesus. The authenticity and reliability of these sources have been questioned by many scholars, and few events mentioned in the gospels are universally accepted.