Why didn't Paul write about the Resurrection of Jesus?

Paul's letter was written around the year 58. The Gospels were written well after that. Paul never mentions Jesus having been resurrected in the flesh. He never mentions empty tombs, physical appearances, or the ascension of Jesus into heaven afterward (i.e. when Paul mentions the ascension, he never ties it to appearances in this way, and never distinguishes it from the resurrection event itself). Why wouldn't Paul write about this if it happened?