Nearly all that is known about the life of Jesus, also called Jesus Christ, after whom Christianity is named, is contained in the four Gospels of the New Testament, particularly those of Mark, Matthew, and Luke. These accounts were written 60 to 100 or more years after the birth of Christ by men of different temperaments. They differ in some details but agree in all essentials. Jesus himself left no writings. Aside from mere mention by two Roman historians, in works written within a century after his death, the secular historians of his time said nothing about this man who has had such a profound influence on the life and thought of the world.