Has been dividen In three eras the firths
Paleolithic era thats mean new stone and the other mesolithic era that mean
the period of the changed and the final era neolithic era does mean (chagnded
of hunters and agricultured and less romantic existenced.

The
paleolithic era took place in c.9000---10000B.C. the society lived in groups
or communitys called always together that tribu or cultuered was hunters (that
means that kill animals to survivor and eat), the most scholars bilieved in
venus they thougth that represent fertility, in this era the groups liked to
painted in cave and they only used this colors (browun, black, yellow and red)
this color came fron minerals and other things.
In other era (mesolithic) started in C.10000-8000B.C. but in this era something
changed like in this era fishing and in the other hunt but in this era the tribus
and groups fishing and started to cultive vegateble and other things they used
the water to cultive.
And the final era was the neolithic does started in (8000-3000B.C.) and in the
neolithic era were three special stone or rare the menhirs, dolmens and chromlech
this three stone have diferent form and place were the find,
Menhirs: came from two celtic the word means two things (stone) and hir, mean
long this is the single stone this only a stone straight standing up.
Dolmens: came from the celtic dol does mean table and is form two or more vertical
stone that support a large single stone like a table.
Cromlechs: came from the celtics and meaning crom cricle and lech place (circle
place) the structure consist and much dolments and menhir forming a circle or
semicircles and the circle are so big.
This three type of stone the celtic thing that are special or rare and until
now no one know whats mean but we know thats attributed a sacred quatility to
it.