February 17, 1600
Giordano Bruno is burned at the stake
Bruno was an Italian friar, philosopher, poet, astrologer, and mathematician. His death was due to various convictions, including heresy, blasphemy, and immoral conduct. Bruno faced these charges largely for publicly disagreeing with various aspects of the Catholic Church, from disagreeing with the divinity of Christ to believing in metempsychosis (the transmigration of the soul and reincarnation after death).
Before being burned alive, his “tongue (was) imprisoned because of his wicked words.”
The witness account which mentioned this “imprisonment” of the tongue does not go into further detail, but Bruno was probably gagged to prevent further heresy.