Damiens' execution versus the prison timetable
The book opens by setting the 1757 public dismemberment of the regicide Damiens beside a prison timetable drawn up some eighty years later, which regulates inmates' rising, prayer, work, meals and silence minute by minute. The contrast shows punishment moving from a spectacle inflicted on the body to a routine that works on conduct, time and habits. Foucault treats this change as a new target and a new technique of power, not simply as more humane treatment.
