Cahokia a Native American city
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Cahokia was a Native American city located near Collinsville in the
west-central part of the U.S. state of Illinois, across the
Mississippi River from St. Louis, Missouri, in the American Bottom
floodplain. Cahokia is best known for large, man-made earthen
structures, known popularly as mounds, the largest of which is
Monk's Mound; as well as its timber circles named Woodhenge after
Stonehenge, as both structures marked the solstices, equinoxes and
other astronomical events. Cahokia Mounds was designated a National
Historic Landmark on July 19, 1964, and on October 15, 1966 was
listed on the National Register of Historic Places. Cahokia Mounds
State Historic Site, designated as a World Heritage Site in 1982,
protects 2200 acres (8.9 km²) of the area of the mounds (but more of
the site is on private land) and is the site of ongoing
archaeological excavations. Cahokia is one of the best known sites
of the Mississippian culture and the term "Cahokian" is sometimes
used to describe the culture. |
The site was first settled around 650 during the Late Woodland
period. Mound building did not begin here until 1050 at the
beginning of the Mississippian period, and the site was abandoned
between 1250 and 1400. The original name of the city is unknown and
the inhabitants appear to have not employed writing. The name
Cahokia is that of an unrelated clan of Illiniwek that was living in
the area when the first French explorers arrived in the early 17th
century. The Osage Nation, Omaha, Ponca, Quapaw and others are
believed to be the direct descendants of the Mississippian culture
but no stories referring to the city of Cahokia were ever recorded
among the tribes.
Monk's Mound is the largest man-made earthen mound in North America
at about 100 feet (30.5 m) high and a base of 1,037 by 790 feet (316
by 241 m). A large building, possibly the residence of the city's
paramount chief, originally stood on the top of the mound. This
single building was 105 feet long, 48 feet wide and about 50 feet
high. A 50 acre (200,000 m²) plaza stood in front of the mound. The
Cahokia site contains several types of mounds - flat-top, conical
and ridge-top mounds, which possibly had different functions. More
than 120 mounds are thought to have existed. Of these, 109 have been
located and 68 are preserved in the park.
During the Pre-Columbian era, Cahokia was, for a time, the largest
North American city north of the Mesoamerican cities of central
Mexico. It was one of two major centers of a group of peoples known
now as the Mound Builders.
The city population is thought to have been around 1,000 until about
the year 1050 when the population exploded to tens of thousands.
Estimates of the city's peak population range from 8,000 to 40,000,
with scattered farmsteads and farming villages surrounding and
supplying it. There were trade links between Cahokia and sites as
far away as southern Minnesota and the Gulf Coast. Pottery and stone
tools in the Cahokia style were common at the Silver nail
archaeological site near Red Wing, Minnesota. Until c. 1800, no
North American city north of Mexico would be larger than Cahokia had
been at its peak (Around 1800, Philadelphia broke Cahokia's record).
Environmental factors, such as over hunting and deforestation, have
been proposed for the city's decline and abandonment. Another
suspected culprit is destruction by nomadic tribes moving into the
area and wiping out the thus-weakened civilization. However, no
physical evidence of warfare of any kind has been found, despite the
existence of a high wall with guard posts. Diseases such as cholera
and typhoid, with vectors facilitated by large, dense populations
are other possible causes of the rapid depopulation of the Cahokia
area. More current models propose political collapse as the primary
cause of the Cahokian decline.
The city and its more than 100 mounds (not all of them surviving) is
laid out on a diamond-shape area approximately a mile from
end-to-end. The flatness of this plaza was originally thought to be
due to the fact that the city sits on an alluvial flood plain
created by the nearby Mississippi River, but soil studies revealed
that original soil was undulating and had been expertly leveled.
This means that Cahokia can boast the largest man-made plaza in the
world to this day.
During the excavation of Mound 72, a ridge-top burial mound,
archeologists found the remains of someone who was probably an
important ruler, a male in his 40s. He was buried on a bed of more
than 20,000 marine-shell disc beads laid in the shape of a falcon. A
typical motif of the Mississippian culture is the birdman. Nearby
were caches of arrowheads of a variety of materials and styles which
indicate a widespread geographic origin. The arrowheads were
separated into four types, each from a different region in North
America, indicating extensive trade links. Over 250 other skeletons
were recovered from the mound, most from mass graves and some males
missing hands and heads which seem to indicate that they were human
sacrifices, but it is unlikely that they were all deposited at the
time of the important ruler's burial. Wood in several parts of the
mound has been radiocarbon-dated to 950–1000 AD. |
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