There is none that I can find! LOL! Sorry...
tavo
No written language.
True, it is!
No written language
Those are prehistoric people; I don't think much is known about any language they may have had. From Wikipedia: "Neanderthals made advanced tools, probably had a language (the nature of which is debated and likely unknowable) and lived in complex social groups..."
I think they didn't, they communicated themselves by signals.
It was before there was language and writing (prehistoric) so there is no way to answer. Sorry-
Brittany, also known as Bretagne in French, is known for its rugged coastline, Celtic heritage, delicious seafood, and unique Breton language and culture. It is also famous for its stunning medieval towns, traditional festivals, and the mysterious prehistoric Carnac stones.
Talc is known from the prehistoric times !
Salt is known from prehistoric times.
Carbon is known from prehistoric times.
Chemistry is known from prehistoric times.