170 years ago today - Sep 5, 1841

[General] Joseph Smith "preached to a large congregation at the Stand, on the Science and practice of Medicine, desiring to persuade the Saints to trust in God when sick, and not in an arm of flesh, and live by faith and not by medicine, or poison, and when they were sick, and had called for the Elders to pray for them, and they were not healed, to use herbs and mild food."

[Source: On This Day in Mormon History, http://onthisdayinmormonhistory.blogspot.com]