Conversation so far:
What has modern life done?
Amish have felt pressures from the modern world.
What pressure?
Issues such as taxation.
What other issue?
education.
What is another issue they face?
law and its enforcement.
What was the next issue they faced?
sporadic discrimination and hostility from their neighbors.
What has this caused?
throwing of stones or other objects at Amish horse-drawn carriages.
What is an issue with th state?
Jonas Yoder and Wallace Miller of the Old Order Amish, and Adin Yutzy of the Conservative Amish Mennonite Church were each fined.

Question: When did this happen?
Self-contained rewrite: When did the fines happen?