Actually, it’s surprisingly hard to get anything under torture, true or false. For example, between 1500 and 1750, French prosecutors tried to torture confessions out of 785 individuals. Torture was legal back then, and the records document such practices as the bone-crushing use of splints, pumping stomachs with water until they swelled and pouring boiling oil on the feet. But the number of prisoners who said anything was low, from 3 percent in Paris to 14 percent in Toulouse (an exceptional high). Most of the time, the torturers were unable to get any statement whatsoever.
Link courtesy of EdCone.com.