Church History - Who Are These Reformers - Anabaptists - William Tyndale - Heinrich Bullinger

What distortions of truth have been allowed in the Church? What was the result of "personal study and reading of scriptures" which caused men to challenge religious norms / traditions? How did these reformers view water baptism, and separation from the world. What effect did the printing press have on the new reformation along with having Scripture in your own language?