The Amish division was the most serious and the only major schism which occurred in the South German Anabaptist-Mennonite groups, when a considerable minority under the leadership of Elder Jakob Ammann, of Erlenbach, canton of Bern, Switzerland, in 1693-1697 divided from the main body. Jakob Ammann has three issues on which Hans Reist, the leader of the opposing side, would not agree with them, namely: