Most scholars date Mark AD 65-75.
They reject the traditional ascription to Mark the Evangelist, the companion of the Apostle Peter, which probably arose from the desire of early Christians to link the work to an authoritative figure, and believe it to be the work of an author working with various sources including collections of miracle stories, controversy stories, parables, and a passion narrative. It was traditionally placed second, and sometimes fourth, in the Christiancanon, as an inferior abridgement of what was regarded as the most important gospel, Matthew. The Church has consequently derived its view of Jesus primarily from Matthew, secondarily from John, and only distantly from Mark.It was only in the 19th century that Mark came to be seen as the earliest of the four gospels, and as a source used by both Matthew and Luke. The hypothesis of Marcan priority (that Mark was written first) continues to be held by the majority of scholars today, and there is a new recognition of the author as an artist and theologian using a range of literary devices to convey his conception of Jesus as the authoritative yet suffering Son of God.