In the part more aloft of the country, among
the ruins of the medieval castle, in place Castello today we can
admire still some manufactured articles (two big stones and some
coppelle dug in the present roccies in the ground), of Celtic
origin belonging to the sacred center of the "Conciliabulum"
(territorial subdivision of the Liguri-Apuani) of Casoli, one of
the lithic complexes among the most interesting of the province
of Lucca.
To the two big manufactured articles,
situated near the ruins of the it walls up of the castle, a big
stone from the form oval-lengthened long around 2 wide ms 1 m,
where two seats
have been dug, in front of which the second stone is set to form
of two trunks of cone overlapped, with the plan
(1m of
diameter), sideways positioned in direction of midday, in a
first time you was exclusively attributed him a religious
function,
for many years you was considered as an area turned to the
propitiatory rites, where the second stone developed the
function of sacrificial macaw, then to the conclusion of some
inspections to the site, happened between 1970 and 1980 the
historical C.Puccini, R.Ambrosini and M.Zecchini they decided to
deepen the searches, that brought to the discovery of a Celtic
calendar inserted in a primitive astronomic observatory.
A series of situated holes on two layers,
along the circumference of the second stone and his/her plan
tilted toward alike midday to a sundial, it pushed their
searches toward the calculation of the time, science for a long
time studied by the man and already note in the ancient
civilization, where conclusive to know the beginning of the was
you season, to program the seeding, the crops and the other
essential jobs for the survival of the populations, in their
inspections of December 28 th 1980,
the three researchers after having polished up with care the
stones inserted some batons in the small holes (7 places to
around 30 cms the one from the other) and to the sunset they
noticed that the shades of the batons were causally projected
not but in determined points of the stones, through which it was
to easily individualize the solstice in winter and subsequently
the solstice in summer
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