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<div class=="headline primeColor"><a href=="http://dsc.discovery.com/news/2006/06/28/perustonehenge_arc.html">http://dsc.discovery.com/news/2006/06/28/perustonehenge_arc.html</a></div>
<div class=="headline primeColor"><strong></strong> </div>
<div class=="headline primeColor"><strong>Ruins Suggest Tropical
Stonehenge</strong></div><div class=="headline primeColor"> </div>
<div class=="byline">(Associated Press)</div>
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<p><b>June 28, 2006 —</b> A group of granite blocks along a grassy Amazon
hilltop may be the vestiges of a centuries-old astronomical observatory — a find
archaeologists say shows early rainforest inhabitants were more sophisticated
than previously believed.</p>
<p>The 127 blocks, some as high as 9 feet tall, are spaced at regular intervals
around the hill, like a crown 100 feet in diameter.</p>
<p>On the shortest day of the year — Dec. 21 — the shadow of one of the blocks,
which is set at an angle, disappears.</p>
<p>"It is this block's alignment with the winter solstice that leads us to
believe the site was once an astronomical observatory," said Mariana Petry
Cabral, an archaeologist at the Amapa State Scientific and Technical Research
Institute. "We may be also looking at the remnants of a sophisticated
culture."</p>
<p>Anthropologists have long known that local indigenous populations were acute
observers of the stars and sun. But the discovery of a physical structure that
appears to incorporate this knowledge suggests pre-Columbian Indians in the
Amazon rainforest may have been more sophisticated than previously
suspected.</p>
<p>"Transforming this kind of knowledge into a monument; the transformation of
something ephemeral into something concrete, could indicate the existence of a
larger population and of a more complex social organization," Cabral said.</p>
<p>Cabral has been studying the site, near the village of Calcoene, just north
of the equator in Amapa state in far northern Brazil, since last year. </p>
<p>She believes it was once inhabited by the ancestors of the Palikur Indians,
and while the blocks have not yet been submitted to carbon dating, she says
pottery shards near the site indicate they are pre-Columbian and maybe older —
as much as 2,000 years old.</p>
<p>Last month, archaeologists working on a hillside north of Lima, Peru,
announced the discovery of the oldest astronomical observatory in the Western
Hemisphere — giant stone carvings, apparently 4,200 years old, that align with
sunrise and sunset on Dec. 21.</p>
<p>While the Incas, Mayans and Aztecs built large cities and huge rock
structures, pre-Columbian Amazon societies built smaller settlements of wood and
clay that quickly deteriorated in the hot, humid Amazon climate, disappearing
centuries ago, archaeologists say.</p>
<p>Farmers and fishermen in the region around the Amazon site have long known
about it, and the local press has dubbed it the "tropical Stonehenge." </p>
<p>Archeologists got involved last year after geographers and geologists did a
socio-economic survey of the area by foot and helicopter, and noticed "the
unique circular structure on top of the hill," Cabral said.</p>
<p>Scientists not involved in the discovery said it could prove valuable to
understanding pre-Columbian societies in the Amazon.</p>
<p>"No one has ever described something like this before. This is an extremely
novel find — a one of a kind type of thing," said Michael Heckenberger of the
University of Florida's Department of Anthropology.</p>
<p>He said that while carbon dating and further excavation must be carried out,
the find adds to a growing body of thought among archaeologists that prehistory
in the Amazon region was more varied than had been believed.</p>
<p>"Given that astronomical objects, stars, constellations etc., have a major
importance in much of Amazonian mythology and cosmology, it does not in any way
surprise me that such an observatory exists," said Richard Callaghan, a
professor of geography, anthropology and archaeology at the University of
Calgary.</p>
<p>Brazilian archaeologists will return in August, when the rainy season ends,
to carry out carbon dating and further excavations.</p>
<p>"The traditional image is that some time thousands of years ago small groups
of tropical forest horticulturists arrived in the area and they never changed —
(that) what we see today is just like it was 3,000 years ago," Heckenberger
said. </p>
<p>"This is one more thing that suggests that through the past thousands of
years, societies have changed quite a lot."</p></div></font></div><br>-- <br>Etnolinguistica.Org<br>Setor de Etnolingüística, Museu Antropológico/UFG<br>Av. Universitária, 1166, Setor Universitário <br>74605-010 Goiânia, Goiás, BRASIL
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