Complex sentence: Radical Criticism is a movement around the late 1800s that, typically, tried to show that none of the Pauline epistles are authentic, and that Jesus and the apostles were ahistorical constructions.
Split into simpler sentences: Radical Criticism is a movement around the late 1800s that, typically, tried to show that none of the Pauline epistles are authentic. This group of scholars often postulated that Jesus and the apostles were ahistorical constructions.