Two skulls were found in Spain with holes drilled in them. The skulls were found in a cemetery that dates to the 13th and 14th centuries.
The practice is called trepanning and goes back to ancient times. A hole was cut into the skull of a living person to relieve head trauma or other conditions related to the head. It is also thought that it was done to let out evil spirits.
One of the skulls shows evidence that the patient lived a long while after the procedure. The other person probably died soon after. [photo]