Medieval Church Texts
The Apostles teachings and creed
Augustines Love Sermons
John Calvin's Writings on the Sovereignty of God
Johnathan Edwards Writings on Free Will of Mankind
History writings on the life of Charlemagne
The Writing of the Malleus Maleficarum or the Witches Hammer
Writings of John Bunyun on the Christian Life, the Pilgrims Progress
A Tract by John Wycliffe questioning basic doctrines in the Catholic Church.
The Nicene Creed from 300 A.D.