Oh well done,u got me on starting from the wrong date,there's me thinking AD 1 was the year after Jesus died when it was the year he was born,,so we're saying John wrote his part about 60years after Jesus's death? This begs the question why wait so long?
There are good grounds for thinking that John wrote Revelation in around 70 AD for it refers to seven 'rulers' with the sixth being alive when Revelation was written. This would suggest it was Vespasian or even Nero.
Luke almost certainly wrote his Gospel prior to 65 AD for he closes its second part (Acts) with Paul still in prison in Rome for the first time. It is almost inconceivable that he ended there if he knew that Paul had been martyred or that Jerusalem had been destroyed. He also testifies to the fact that there were many written 'lives of Jesus' at the time he was writing. These would almost certainly include both Mark and Matthew. His outline suggests that he certainly knew Mark. Thus we should date Mark, and probably Matthew, in the fifties.
Mark wrote under the influence of Peter, thus prior to 60 AD when he was with Paul
Matthews work contains much unique material, especially words of Jesus, but also shows signs of the use of oral tradition well known in the churches. Given his active ministry the Gospel may well have taken him ten years to write. which would suggest that he began writing in the forties using as a basis the sermons of Jesus he himself as a former literary tax collector which he had written down. They bear the clear mark of their Aramaic origins, although Matthew definitely wrote in Greek (it is not translation Greek which is clearly identifiable).