" In addition, local authorities were ordered to seize each Christian man, to pluck out his beard and to tattoo a black mark on his shoulder. When few Christians defected in response to these measures, the Khān then ordered that all Christian men be castrated and have one eye put out—which caused many deaths in this era before antibiotics, but did lead to many conversions.37 "

― Rodney Stark , The Triumph of Christianity: How the Jesus Movement Became the World's Largest Religion