Simplify the following text for a Grade 8 native English-speaking person.
Original: In the early 18th century , many Amish and Mennonites immigrated to Pennsylvania for a variety of reasons .
Simplified: The ancestors of the Amish came from Germany in the 18th century , and now most of the Amish live in Pennsylvania ( Lancaster County ) and Ohio , in the United States . They are related to the Mennonites .