1521 - The Diet of Worms begins, lasting until May 25 (Source)
Recommended sermons and podcasts:
Total Depravity, Part 1, by Rev. Paul den Butter
The German Reformer Martin Luther, by Dr. Ian R. K. Paisley (1926-2014) [Text: Romans 1:16,17]
The Most Influential Man of the Millennium - Martin Luther Tops Secular List, by Pastor Kevin Swanson
Martin Luther: The Monk Through Whom God Shook the World, by Dr. Alan Cairns [Text: Acts 26, Romans 1:17]
1591 - Execution of Agnes Sampson, accused of witchcraft in Edinburgh (Source)
Recommended sermons and podcasts:
Inquisition, Witches and Mystics, by Dr. James White
What Every Christian Needs to Know About the Inquisition, by Dr. Peter Hammond
Cotton Mather: American Puritan, by Rev. David McKay
Demon Possession in early America, Santan, Satanism, and the Occult, Part 1, by Cotton Mather
Demon Possession in early America, Santan, Satanism, and the Occult, Part 3, by Cotton Mather