published on 01 May 2013
A Neolithic (3500 BCE) skull showing evidence of a trephination operation - the removal of a part of the cranium to relieve pressure, used as a medical treatment for a variety of ailments from migraines to mental illness. The treatment was used in many ancient cultures. (Natural History Museum, Lausanne).
Based on Wikipedia content that has been reviewed, edited, and republished. Original image by Jmh649. Uploaded by Mark Cartwright, published on 01 May 2013 under the following license: Creative Commons: Attribution-ShareAlike. This license lets others remix, tweak, and build upon your work even for commercial reasons, as long as they credit you and license their new creations under the identical terms.
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