When does an Anabaptist leader born who led the schism in Switzerland within a group of Swiss and Alsatian Anabaptists? 
Amish:  The history of the Amish church began with a schism in Switzerland within a group of Swiss and Alsatian Anabaptists in 1693 led by Jakob Ammann. Jakob Ammann: Jakob Ammann (also Jacob Amman, Amann) (12 February 1644 – between 1712 and 1730) was an Anabaptist leader and namesake of the Amish religious movement.
12 February 1644