Did a sixteenth-century heretic grasp the nature of the cosmos?
Giordano Bruno fled the Inquisition to write and to speak across Northern Europe
In 1600, Rome’s Campo de’ Fiori, now a nice plaza lined with cafés, was one of the city’s execution grounds, and on Ash Wednesday of that year Giordano Bruno, a philosopher and former priest accused of heresy by the Inquisition, was taken there and burned. The event was carefully timed. Ash Wednesday is the primary day of Christian penance. As for the year, Pope Clement VIII chose it because 1600 was a jubilee for the Church—a festivity that would be enhanced by the execution of an important heretic. Bruno rode...