ryld wrote:
The Apostles taught the Gospel.  Last I noticed, they finished their mission in delivering the Doctrine and left this earth much longer before the 16th century. 
Christ didn't establish His Church to just end when the Apostles died.  Come on, think!

  

Isaiah 50:7    "For the Lord GOD helps me; therefore I have not been confounded; therefore I have set my face like a flint, and I know that I shall not be put to shame"