was while he was thus “on the swither,” tremulously on the balance, that John Eck challenged him to dispute at Leipzig on the primacy and supremacy of the Roman Pontiff. The discussion might clear the air, might make himself see where he stood. He accepted the challenge almost feverishly. § 3. The Leipzig Disputation.(167) Leipzig was an enemies’ country, and his Wittenberg friends would not allow Luther to go there unaccompanied. The young Duke Barnim, who was Rector of the University of Wittenberg, accompanied Carlstadt and Luther, to give them the protection of his presence. Melanchthon, who had been a member of the teaching staff of Wittenberg since August 1518, Justus Jonas, and Nicholas Amsdorf went along with them. Two hundred Wittenberg students in helmets and halberts formed a guard, and walked beside the two country carts which carried their professors. An eye-witness of the scenes at Leipzig has left us sketches of what he saw: “In the inns where the Wittenberg students lodged, the landlord kept a man standing with a halbert near the table to keep the peace while the Leipzig and the Wittenberg students disputed with each other. I have seen the same myself in the house of Herbipolis, a bookseller, where I went to dine ... for there was at table a Master Baumgarten ... who was so hot against the Wittenbergers that the host had to restrain him with a halbert to make him keep the peace so long as the Wittenbergers were in the house and sat and ate at the table with him.” The University buildings at Leipzig did not contain any hall large enough for the audience, and Duke George lent the use of his great banqueting-room for the occasion. The discussions were preceded by a service in the church. “When we got to the church ... they sang a Mass with twelve voices which had never been heard before. After Mass we went to the Castle, where we found a great guard of burghers in their armour with their best weapons and their banners; they were ordered to be there twice a day, from seven to nine in the morning and from two to five in the afternoon, to keep the peace while the Disputation lasted.”(168) First, there was a Disputation between Carlstadt and Eck, and then, on the fourth of July, Eck and Luther faced each other—both sons of peasants, met to protect the old or cleave a way for the new. It was the first time that Luther had ever met a controversialist of European fame. John Eck came to Leipzig fresh from his triumphs at the great debates in Vienna and Bologna, and was and felt himself to be the hero of the occasion.