The age of the Reformation, as one of the creative periods in the history of the Western church, was rich in great personalities. The challenge of the time brought some men to heroic heights, while it took scores of lesser men out of their small corners and flung them into the great stream of movement and action which was remaking the world, where they were compelled to assume places of leadership. The names, and often the life stories, of many of the characters of four hundred years ago are still familiar to us today. Some of them are household names. But there are no Anabaptist names among them, even though the Anabaptist movement represents a distinct type of continental Protestantism. Menno Simons, the sturdy leader of Dutch Mennonitism, is perhaps most widely known of the Anabaptist leaders, although the quadricentennial of his conversion from Catholicism to the Anabaptist movement, which was celebrated last year by Mennonites round the world, passed scarcely noticed. But Menno was not the founder of Anabaptism, and ten years before he appeared on the theatre of action most of the original founders and leaders of Anabaptism in its birthland in Switzerland and South Germany were numbered among the martyrs. The careers of these Swiss leaders were so short that even among their present-day Mennonite descendants most of them had been totally forgotten until they were revived in recent years by modern historical research; and today there is no living tradition attached to their names. It is true that as long ago as 1910 Adolph von Harnack could say in his History of Dogma: “Thanks to the research of recent years we have been presented with figures of splendid Christian leaders from among the circles of the Anabaptists, and many of these noble and reverend characters come nearer to us than the figures of an heroic Luther and an iron Calvin.”