Rival popes, church councils, and the Bible in print

Jan van Eyck, about 1436–1438, New York. Two panels: Christ on the cross, and Christ as judge.
How a divided Church lived and taught
The cup, and Christ’s presence in the Supper
Constance, Basel, and Ferrara-Florence
A Prague preacher and his death at Constance

Printing, the fall of Constantinople, and new lands

Leonardo da Vinci, about 1495–1498, Milan. A mural of the moment Christ says one will betray him.
There was no Lutheran church in the 1400s
What the Confessions teach about Christ and the sacraments
How does the Lutheran reading of the Lord’s Supper answer the council’s ban on the cup?