May 30, 1416
Jerome of Prague burns at the stake for heresy. When the Council of Constance arrested and tried his fellow Bohemian reformer Jan Hus, Jerome went to defend him, sealing his own fate (see Issue 68: Jan Hus).
May 30, 1431
French mystic and revolutionary Joan of Arc burns at the stake for heresy. Her last words were, "Jesus, Jesus" (see Issue 30: Women in the Medieval Church).
May 30, 1934
The first synod of the Confessing Church at Barmen ends. Influenced by Karl Barth, the synod resisted the teachings of the Nazi German Christians.