Ancient mankind came together 35,000 years ago in the recondite , darkest part of a cave in what is now western Galilee , Israel , to hold ritualistic assembly . This is likely the earliest known example of such gatherings on the Asian continent .

Discovered in 2008 , Manot cave has a long history of association with both humanity and Neanderthals . Existingresearchsuggests the cave was inhabit from the Late Middle Paleolithic through to the Early Upper Paleolithic periods up until its entrance burst around 30,000 long time ago .

It was home to both human beings and Neanderthals at different time . In 2015 , scientist identified a 55,000 - year - old skull that offer physical evidence of interbreed between Neanderthals andHomo sapiens , with characteristics from both visible in the fragments .

The photo shows a close up image of the carved stone placed in the ritual cavern. It is an irregular shape with a relatively flat right-hand side. The shape of a turtle can be seen carved into its surface with deep grooves.

The carved stone showing what looks like a tortoise shell shape was deliberately placed in a niche in the cave by ancient humans.Image credit: Clara Amit, Israel Antiquities Authority.

The cave itself comprise of a large main lobby and two side chambers . The cave ’s living infinite was belike locate nearer its entrance – but in its deepest part , settle around eight stories down , was a blank that was used as a gathering plaza , possibly for ritual that strengthened societal connections . In this space , there is a John Rock that has been deliberately placed within a niche in the cavern ; this rock and roll has a tortoise - shell pattern carve into it that seem to be contemporaneous with some of the former cave paintings inFrance .

In addition to the unusual stone , there is grounds of Grant Wood ash on the surrounding stalagmites , which suggest people carried torches into the cavern to light it . This space also has good born acoustic , which would have been favorable for big gatherings .

The cave and the dentists

Although Manot Cave has been the subject of archeological research for nearly two 10 , many of the researchers are not those you would not inevitably associate with the content . In 2012 , Case Western Reserve ’s School of Dental Medicine got need in the archeological site by commit both financial support and dental educatee to work at the site .

Although they are not trained in archaeology , dental student can be extremely useful for identifying bone fragments from rock , which has been invaluable at Manot Cave .

“ Most citizenry would not suspect that a dental school would be involved in an archaeologic dig , ” Mark Hans , prof and chair of orthodontics at the dental school added . “ But one of the things that are preserved very well in ancient skeletons are teeth , because they are harder than bone . There is a whole champaign of dental anthropology . As an orthodontist , I am interested in human facial growth and development , which , it turn out , is exactly what is involve to key out anthropological specimens . ”

For 10 years , Case Western Reserve has direct between 10 and 20 dental scholarly person to help with excavations during the summertime season . This summertime research has become so popular that students from other dental and medical schools have been applying to visit Israel with the team .

The work is published in the journalProceedings of the National Academy of Sciences .