When did Paul write 1 Corinthians?
Paul wrote this letter to the Corinthians in about 59 A.D., roughly 31 years after the resurrection, which the context ties to the resurrection chapter. At that writing, the greater part of the 500 brethren who had witnessed the risen Lord were still alive.
Les teaches that, near as we can discern, this letter to the Corinthians was written in about 59 A.D., which places it roughly 31 years after the resurrection appearances described in the chapter. He explains that if some of those who saw the risen Lord were, like Paul, in their late twenties or early thirties at the time, they would only have been up in their sixties by 59 A.D. Therefore, as Paul says, the greater part of those 500 witnesses remained alive yet and could still testify that they had seen the risen Christ. This timing underscores Paul's point that living eyewitnesses were still available as proof of the resurrection.