Mass Grave
© Dr Christian Meyer/University of MainzResearchers have been studying the prehistoric human remains discovered at Schöneck-Kilianstädten, Darmstadt.
Prehistoric man may have been responsible for the first ever war crime, after German archaeologists found a mass grave with evidence that the victims had been tortured and slain.

Researchers at the University of Mainz have been studying the remains of 26 people who were found dumped in a bit dating from the early Neolithic, around 4000BC.

Although mass graves have been found before from the stone age, it is the first time that skeletons have shown evidence of needless violence.

Most of the skull bones revealed that the victims had been hit over the head with a blunt instrument, while arrow heads nearby suggest they could have been killed by bowmen.

But for the first time there was evidence of deliberate and systematic smashing of the lower leg bones of a number of individuals suggesting that the victims were either tortured before or mutilated after death.

The grave was discovered at Schöneck-Kilianstädten, Darmstadt, in 2006, and archaeologist have been excavating the site and studying the bones ever since.

The researchers say the remains, taken with similar sites from the period, demonstrate a pattern of large-scale mass violence during the time.

Lead researcher Christian Meyer, of the Institute of Anthropology, University of Mainz, said; "The concerted annihilation of entire social units, one of the hallmarks of early warfare, is not clearly evident from the analysis of human skeletal remains from three separate localities.

"Massacres seem to have been the most powerful strategy in prehistoric warfare and the oestoarchaeological evidence from the Early Neolithic shows that such acts of mass violence were carried out repeatedly in the deep human past by groups living in prisitine prestate conditions.

""The abundance of the fractures clearly indicates torture and/or mutilation of the victims."

The first record of a prehistoric battle was found at the 14,340- to 13,140-year old Mesolithic site known as Cemetery 117 located on the Nile near the Egypt Sudan border.

The Talheim Death Pit, discovered in 1983 in Germany was the first evidence of organised warfare in the Neolithic. It contained 34 bodies.

The research was published in the journal Proceedings of the National Academy of Sciences.