A South American Stonehenge?
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BBC NEWS
Towers point to ancient Sun cult
The oldest solar observatory in the Americas has been found, suggesting
the existence of early, sophisticated Sun cults, scientists report.
It comprises of a group of 2,300-year-old structures, known as the
Thirteen Towers, which are found in the Chankillo archaeological site,
Peru.
The towers span the annual rising and setting arcs of the Sun, providing
a solar calendar to mark special dates.
The study is published in the journal Science.
Clive Ruggles, professor of archaeoastronomy at Leicester University,
UK, said: "These towers have been known to exist for a century or so. It
seems extraordinary that nobody really recognised them for what they
were for so long.
"I was gobsmacked when I saw them for the first time - the array of
towers covers the entire solar arc."
The Thirteen Towers of Chankillo run from north to south along the ridge
of a low hill within the site; they are relatively well-preserved and
each has a pair of inset staircases leading to the summit.
The rectangular structures, between 75 and 125 square metres (807-1,345
sq ft) in size, and are regularly spaced - forming a "toothed" horizon
with narrow gaps at regular intervals.
About 230m (750ft) to the east and west are what scientists believe to
be two observation points. From these vantages, the 300m- (1,000ft-)
long spread of the towers along the horizon corresponds very closely to
the rising and setting positions of the Sun over the year.
"For example," said Professor Ruggles, "if you were stood at the western
observing point, you would see the Sun coming up in the morning, but
where it would appear along the span of towers would depend on the time
of the year."
"So, on the summer solstice, which is in December in Peru, you would see
the Sun just to the right of the right-most tower; for the winter
solstice, in June, you would see the Sun rise to the left of the
left-most tower; and in-between, the Sun would move up and down the
horizon."
This means the ancient civilisation could have regulated a calendar, he
said, by keeping track the number of days it took for the Sun to move
from tower to tower.
Sun cults
The site where the towers are based is about four square kilometres (1.5
square miles) in size, and is believed to be a ceremonial centre that
was occupied in the 4th Century BC. It is based at the coast of Peru in
the Casma-Sechin River Basin and contains many buildings and plazas, as
well as a fortified temple that has attracted much attention.
The authors of the paper, who include Professor Ivan Ghezzi of the
National Institute of Culture, Peru, believe the population was an
ancient Sun cult and the observatory was used to mark special days in
their solar calendar.
Professor Ruggles said: "The western observing point, and to some
extent, the eastern one, are very restricted - you couldn't have got
more than two or three people watching from them. And all the evidence
suggests that there was a formal or ceremonial approach to that point
and that there were special rituals going on there.
"This implies that you have someone special - the priests perhaps - who
watched the Sun rise or set, while in the plaza next door, the crowds
were feasting and could see the Sun rise, but not from that special
perspective.
Written records suggest the Incas were making solar observations by 1500
AD, and that their religion centred on Sun worship.
"We know that in Inca times, towers were used to observe the Sun near
the solstices, which makes you speculate that there are elements of cult
practice that go back a lot further," Professor Ruggles told the BBC
News website.
Story from BBC NEWS:
http://news.bbc.co.uk/go/pr/fr/-/2/hi/science/nature/6408231.stm
Published: 2007/03/01 19:02:29 GMT
BBC MMVII
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http://news.bbc.co.uk/2/hi/science/nature/6408231.stm
--
John Hachmann aa #1782
"Those who can make you believe absurdities can make you commit atrocities"
-Voltaire
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