16th-century French theologian Sebastian Castellio predicted that religious extremism would spill "so much blood that its loss will be irremediable." A historian argues his warnings about the dangers of forcing ideology on people apply today.
The Conversation
Why one 16th-century theologian’s advice for a bitterly divided nation holds true today
Sebastian Castellio penned one of the first arguments for religious freedom – but it went unheeded for centuries.