From the beginning Anabaptism was an underground movement that lost virtually all its leaders in the first two years. It was partly because of Anabaptism that Protestant churches adopted the confirmation service, and baptismal registers (the boon of genealogists) came into being. A 16th century man who did not drink to excess, curse, or abuse his workmen or family could be suspected of being an Anabaptist and thus persecuted. Anabaptists were the first reformers to practice church discipline. Under