HistoryNeolithic (c. 9000-7000 BCE)Turkey (Southeastern Anatolia)high confidence

Archaeologists discovered three Neolithic human skull fragments at Göbekli Tepe in Turkey bearing deep, purposeful linear grooves, a form of post-mortem skull modification never previously documented anywhere in the world.

Notes on verification

Confirmed by peer-reviewed Science Advances study (Gresky, Haelm & Clare 2017) and corroborated by independent secondary sources including the German Archaeological Institute's own blog, Smithsonian, and phys.org.

Sources