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Cahokia Mounds

 

Metropolis of the Ancient Mississippians
Location: Collinsville, Illinois, USA
Ages 6 & up

Places for Kids > Lost in the Mists of Time > Fossils
Information: 30 Ramey St. ☎ 618/346-5160; www.cahokiamounds.com
Airport: Lambert-St. Louis International, 22 miles.
Lodging: Drury Inn Union Station 2 stars 201 S. 20th St. ☎ 800/378-7946 or 314/231-3900; www.druryhotels.com Embassy Suites 3 stars 11237 Lone Eagle Dr., Bridgeton ☎ 800/362-2779 or 314-739-8929; embassysuites1.hilton.com
Why they'll thank you: Ancient mysteries, right in America's backyard.

It was once the biggest city north of Mexico, with somewhere around 20,000 residents—farmers, hunters, craftsmen, traders, priests—at its peak in A.D. 1100–1200. Archaeologists have named them the Mississippians, but we don't know what they called themselves, because they left no writings behind. An air of mystery hangs over this site, just across the Mississippi River from St. Louis. Who were these people and what was their world like? The answers are hauntingly elusive.

Exhibits at the site's visitor center show how archaeologists play detective with the ancient past. The variety of arrowheads dug up, for example, proves that these people were sophisticated enough to trade with tribes as far away as southern Minnesota and the Gulf Coast. Experts gather that the mounds were built by hand, with workers carrying dirt in baskets on their backs from so-called "borrow pits" to the mounds. Ordinary citizens apparently lived in simple houses with pole walls and thatched roofs, but they labored to erect these immense earthen structures—109 still exist, 68 of them in this park—for public ceremonies.

After viewing the center's model of the ancient city, you can take tours of three different sections of the 2,200-acre site—hour-long ranger-led tours, or 30- to 45-minute self-guided walks (maps and audiotapes available) of each area. You certainly can't miss Monk's Mound, a four-terraced platform mound that once held the home of the city's ruler; it's the biggest mound in the western hemisphere, covering 16 acres at its base and rising 100 feet. Climb the modern steps to its now-grass-covered flat top, and you gaze over a huge leveled plaza, bounded by the city's 2-mile-long log stockade wall, bits of which have been reconstructed. From this vantage point, the kids can identify several mound shapes—flat-top, conical, ridge-top—which apparently had various purposes. Unlike other cultures, the Mississippians generally did not use mounds for burials, although in a few cases skeletons have been unearthed with all the trappings of a prince or chieftain; other skeletons found are mostly those of young women or men with hands and feet cut off, which suggests they were human sacrifices. (Mound 72 was particularly full of sacrificial burials.)

Once archaeologists started to dig, they found something even more amazing: the remains of an astronomical observatory, similar to Stonehenge but built of red cedar logs instead of stones: Woodhenge, the scientists have named it. How did two prehistoric cultures on different continents each get the same idea? And why did this great Mississippian city die? Archaeologists keep on digging, for they still have a lot of questions to answer.

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This prehistoric settlement on the alluvial plain of the Mississippi River valley about four miles northeast of present-day East Saint Louis is the largest archaeological site north of central Mexico. Excavations at Cahokia began in the mid-twentieth century as salvage operations preceding construction of a highway. Major archaeological investigations were initiated in 1984 by the Illinois Historic Preservation Agency and its chief archaeologist for the site, Thomas Emerson. A focus of development of the Mississippian culture in the Midwest between A.D. 700 and 1350, Cahokia's population, estimated at between 10,000 and 25,000, probably peaked from A.D. 1000 to 1100. The site, covering six square miles and featuring at least 120 mounds (some ceremonial, some burial), was carefully laid out with horizontal compass orientations in mind. The ceremonial Monks Mound, the largest platform mound north of Mexico, towers about 98 feet high, with a base of about 984 feet by 656 feet. Many conical burial mounds have been excavated, showing clear signs of social stratification in the form of elaborate grave goods, sometimes imported from great distances. In one mound, a high-status male was buried on a platform of 20,000 cut shell beads.

While Cahokia was surrounded by an enormous log palisade 13 to 16 feet high and perhaps 2.4 miles in length, its decline does not seem to have resulted from outside attack. Nor does any evidence exist to suggest that Cahokia engaged in wars of conquest. A chiefdom (lacking a standing army or police force) rather than a state, Cahokia may have declined for simple environmental reasons. While the maize agriculture introduced into the area around A.D. 750 sparked the rapid growth of the community and supported a relatively large population, it did not provide a balanced diet to the average Cahokian. Soil erosion may have also cut into productivity over time. Further, the enormous palisade required perhaps 20,000 large trees, which were replaced several times during Cahokia's heyday. This huge structure, plus the daily fire-wood needs of the Cahokians, put considerable strain on local woodlands. In addition, satellite communities arose, increasing the general area's population and placing still more demands on the local environment. Gradually, over perhaps fifty to seventy-five years, the population may have simply overwhelmed local resources. The anthropologist Timothy Pauketat of the University of Illinois, however, argues that political and religious failures by Cahokia's leaders were the primary reasons for the population's dispersal. For whatever reason, by 1350 Cahokia was abandoned.

Bibliography

Fowler, Melvin L. The Cahokia Atlas: A Historical Atlas of Cahokia Archaeology. Springfield: Illinois Historic Preservation Agency, 1989.

Mehrer, Mark W. Cahokia's Country side: Household Archaeology, Settlement Patterns, and Social Power. DeKalb: Northern Illinois University Press, 1995.

Young, Biloine Whiting, and Melvin L. Fowler. Cahokia: The Great Native American Metropolis. Urbana: University of Illinois Press, 2000.

—Guy Gibbon Robert M. Owens

Columbia Encyclopedia:

Cahokia Mounds

Top
Cahokia Mounds, approximately 85 Native American earthworks in Cahokia Mounds State Historic Site, SW Ill., near East St. Louis; largest group of mounds N of Mexico. Monks' Mound, a rectangular, flat-topped earthwork, 100 ft (30.5 m) high with a 17-acre (6.9-hectare) base, is named for Trappist monks who settled there in the early 19th cent. The people who constructed the mounds were village dwellers who lived in a fertile river-bottom area; their culture flourished from c.1300 to c.1700. The mounds constitute a national historic landmark.


Cahokia Mounds State Historic Site
IUCN Category III (Natural Monument)
Monks Mound in July.JPG
Monks Mound is the largest earthen structure at Cahokia
Map showing the location of Cahokia Mounds State Historic Site
Map showing the location of Cahokia Mounds State Historic Site
Location St. Clair County, Illinois, USA
Nearest city Collinsville, Illinois
Coordinates 38°39′14″N 90°3′52″W / 38.65389°N 90.06444°W / 38.65389; -90.06444Coordinates: 38°39′14″N 90°3′52″W / 38.65389°N 90.06444°W / 38.65389; -90.06444
Area 2,200 acres (890 ha)
Governing body Illinois Historic Preservation Agency
Official name: Cahokia Mounds State Historic Site
Type: Cultural
Criteria: iii, iv
Designated: 1982 (6th session)
Reference #: 198
State Party:  United States
Region: Europe and North America
Official name: Cahokia Mounds
Designated: October 15, 1966[1]
Reference #: 66000899
Official name: Cahokia Mounds
Designated: July 19, 1964[1]

Cahokia Mounds State Historic Site (play /kəˈhkiə/) is the area of an ancient indigenous city (c. 600–1400 CE) located in the American Bottom floodplain, between East Saint Louis and Collinsville in south-western Illinois, across the Mississippi River from St. Louis, Missouri. The 2,200-acre (890 ha) site included 120 human-built earthwork mounds over an area of six square miles, of which 80 remain.[2] Cahokia Mounds is the largest archaeological site related to the Mississippian culture, which developed advanced societies in central and eastern North America, beginning more than five centuries before the arrival of Europeans.[3]

Cahokia Mounds is a National Historic Landmark and designated site for state protection. In addition, it is one of only 21 World Heritage Sites within the United States. It is the largest prehistoric earthen construction in the Americas north of Mexico.[2]

Contents

Designations

Cahokia Mounds was designated a National Historic Landmark on July 19, 1964, and listed on the National Register of Historic Places on October 15, 1966.[1]

In 1982 UNESCO designated Cahokia Mounds State Historic Site a World Heritage Site. The park protects 2,200 acres (890 ha), and is the focus of ongoing archaeological research. This is among only twenty-one cultural World Heritage Sites in the United States and the only one in Illinois, as designated by the United Nations Educational, Scientific and Cultural Organization (UNESCO).[4] Representative Evelyn M. Bowles spoke about the Cahokia Mounds site saying in a letter, "Through the years my friends and I made occasional Sunday afternoon trips to the Mounds. When I became the State Senator, it afforded me the opportunity to secure funds for the Acquisition of additional acreage in which there are smaller Mounds. Many of these have contained additional artifacts." So this designation has produced results, and led to further research opportunities.[5]

History

Although there is some evidence of Late Archaic period (circa 1200 BCE) occupation in and around the site,[6] Cahokia as we now define it was settled around 600 CE, during the Late Woodland period, and mound building at this location began with the Emergent Mississippian cultural period, about the 9th century CE.[7] The inhabitants left no written records beyond symbols on pottery, shell, copper, wood and stone, but the elaborately planned community, woodhenge, mounds and burials reveal a complex and sophisticated society.[8] The city's original name is unknown.

The original site contained 120 earthen mounds over an area of six square miles, of which 80 remain today. To achieve that, thousands of workers over decades moved more than an "estimated 55 million cubic feet of earth in woven baskets to create this network of mounds and community plazas. Monks Mound, for example, covers 14 acres, rises 100 feet, and was topped by a massive 5,000 square-foot building another 50 feet high."[2]

The Mounds were named after a clan of historic Illiniwek people living in the area when the first French explorers arrived in the 17th century. As this was centuries after Cahokia was abandoned by its original inhabitants, the Cahokia were not necessarily descendants of the original Mississippian-era people. Scholars do not know which if any Native American groups are the living descendants of the people who originally built and lived at the Mound site, although many are plausible.

Monks Mound

Monks Mound (pictured above, right) is the largest structure and central focus of the city: a massive platform mound with four terraces, 10 stories tall, and the largest man-made earthen mound north of Mexico. Facing south, it is 100 feet (30 m) high, 951 feet (290 m) long, 836 feet (255 m) wide and covers 13.8 acres (5.6 ha).[9] It also contains about 814,000 cubic yards (622,000 m3) of earth.[10] The mound grew in stature over the course of several centuries through as many as ten separate construction episodes, as the mound was made ever higher and the terraces and apron were added.[9]

Monks Mounds received its name due to the community of Trappist monks that resided there for a short time, after Euroamericans settled the area. Excavation on the top of Monks Mound has revealed evidence of a large building, likely a temple or the residence of the paramount chief, which would have been seen throughout the city. This building was about 105 feet (32 m) long and 48 feet (15 m) wide, and could have been as much as 50 feet (15 m) high. It was about 5,000 square feet (460 m2).

The east and northwest sides of Monks Mound were twice excavated in August 2007 during an attempt to avoid erosion due to slumping.[11]

Woodhenge

The reconstructed Woodhenge erected in 1985.

Woodhenge, a circle of posts used to make astronomical sightings, stood to the west of Monk's Mound. Archaeologists discovered Woodhenge during excavation of the site and noted that the placement of posts marked solstices and equinoxes, like its namesake, Stonehenge.[12][13] Detailed analytical work supports the hypothesis that the placement of these posts was by design.[14] The structure was rebuilt several times during the urban center's roughly 300-year history. Evidence of another Woodhenge was discovered near Mound 72, to the south of Monks Mound.

According to Chappell, "A beaker[15] found in a pit near the winter solstice post bore a circle and cross symbol that for many Native Americans symbolizes the Earth and the four cardinal directions. Radiating lines probably symbolized the sun, as they have in countless other civilizations."[16] (Cahokia's Woodhenge is not to be confused with another site of the same name that exists in the United Kingdom). The woodhenges were significant to the timing of the agricultural cycle.

Urban landscape

The Grand Plaza is a large open plaza that spreads out to the south of Monk's Mound. Researchers originally thought the flat, open terrain in this area reflected Cahokia's location on the Mississippi's alluvial flood plain but instead soil studies have shown that the landscape was originally undulating. In one of the earliest large scale construction projects at the site and had been expertly and deliberately leveled and filled by the city's inhabitants. It is part of the sophisticated engineering displayed throughout the site. The Grand Plaza covered roughly 50 acres (20 ha) and measured over 1,600 feet (490 m) in length by over 900 feet (270 m) in width.[17] It was used for large ceremonies and gatherings, as well as for ritual games, such as chunkey. Along with the Grand Plaza to the south, three other very large plazas surround Monks Mound in the cardinal directions to the east, west, and north.

A wooden stockade with a series of defensive bastions or watchtowers at regular intervals formed a 2 miles (3.2 km)-long enclosure around Monks Mound, the Grand Plaza, and some of the elite residences. Archaeologists found evidence of the stockade during excavation of the area and indications that it was rebuilt several times. The stockade separated Cahokia's main ceremonial precinct from other parts of the city. Its bastions showed that it was also built for defense.

Beyond Monks Mound, as many as 120 more mounds stood at varying distances from the city center. To date, 109 mounds have been located, 68 of which are in the park area. The mounds are divided into several different types: platform, conical, ridge-top, etc.. Each appeared to have had its own meaning and function. In general terms, the city center seems to have been laid out in a diamond-shaped pattern approximately 1 mile (1.6 km) from end to end, while the entire city is 5 miles (8.0 km) across from east to west.

Ancient city

Cahokia was the most important center for the peoples known today as Mississippians. Their settlements ranged across what is now the Midwest, Eastern, and Southeastern United States. Cahokia was located in a strategic position near the confluence of the Mississippi, Missouri and Illinois rivers. It maintained trade links with communities as far away as the Great Lakes to the north and the Gulf Coast to the south, trading in such exotic items as copper, Mill Creek chert,[18] and whelk shells. Mississippian culture pottery and stone tools in the Cahokian style were found at the Silvernale site near Red Wing, Minnesota, and materials and trade goods from Pennsylvania, the Gulf Coast and Lake Superior have been excavated at Cahokia.

At the high point of its development, Cahokia was the largest urban center north of the great Mesoamerican cities in Mexico. Although it was home to only about 1,000 people before c. 1050, its population grew explosively after that date. Archaeologists estimate the city's population at between 6,000 and 40,000 at its peak, with more people living in outlying farming villages that supplied the main urban center. In 1250, its population was about 15,000, comparable to that of London or Paris during the same period.[19]

If the highest population estimates are correct, Cahokia was larger than any subsequent city in the United States until about 1800, when Philadelphia's population grew beyond 40,000.

Mound 72

Reconstruction of the Birdman burial in the sites interpretative center

During excavation of Mound 72, a ridge-top burial mound south of Monk's Mound, archaeologists found the remains of a man in his 40s who was probably an important Cahokian ruler. The man was buried on a bed of more than 20,000 marine-shell disc beads arranged in the shape of a falcon,[20] with the bird's head appearing beneath and beside the man's head, and its wings and tail beneath his arms and legs. The falcon warrior or "birdman" is a common motif in Mississippian culture. This burial clearly had powerful iconographic significance. In addition, a cache of sophisticated, finely worked arrowheads in a variety of different styles and materials was found near the grave of this important man. Separated into four types, each from a different geographical region, the arrowheads demonstrated Cahokia's extensive trade links in North America.

Archeologists recovered more than 250 other skeletons from Mound 72. Scholars believe almost 62 percent of these were sacrificial victims, based on signs of ritual execution, method of burial, and other factors.[21] The skeletons include:

  • Four young males, missing their hands and skulls.
  • A mass grave of more than 50 women around 21 years old, with the bodies arranged in two layers separated by matting.
Mound 72
  • A mass burial containing 40 men and women who appear to have been violently killed. The suggestion has been made that some of these were buried alive: "From the vertical position of some of the fingers, which appear to have been digging in the sand, it is apparent that not all of the victims were dead when they were interred - that some had been trying to pull themselves out of the mass of bodies."[22]

The relationship of these burials to the central burial is unclear. It is unlikely that they were all deposited at the same time. Wood in several parts of the mound has been radiocarbon-dated to between 950 and 1000 CE.

Copper workshop

Excavations near Mound 34 from 2002-2010 have revealed a copper workshop, although the one of a kind discovery had been previously found in the 1950s by archaeologist Greg Perino but lost for 60 years. It is the only known copper workshop to be found at a Mississippian site.[23] Artisans worked here to produce religious items, such as long-nosed god maskettes, ceremonial earrings with a symbolic shape, thought to have been used in fictive kinship rituals.[24][25] The area contains the remains of three tree stumps thought to have been used to hold anvil stones. Analysis of copper found during excavations showed that it had been annealed, a technique involving repeatedly heating and cooling the metal as it is worked, such as blacksmiths do with iron.[23]

Cahokia's decline

1887 illustration of Monk's Mound showing it with fanciful proportions.

Cahokia began to decline after 1300 CE. It was abandoned more than a century before Europeans arrived in North America, in the early 16th century,[26] and the area around it was largely uninhabited by indigenous tribes.[27] Scholars have proposed environmental factors, such as over-hunting and deforestation as explanations. The houses, stockade, and residential and industrial fires would have required the annual harvesting of thousands of logs. In addition, climate change could have aggravated effects of erosion due to deforestation, and adversely affected the cultivation of maize, on which the community had depended.

Another possible cause is invasion by outside peoples, though the only evidence of warfare found so far is the wooden stockade and watchtowers that enclosed Cahokia's main ceremonial precinct. Due to the lack of other evidence for warfare, the palisade appears to have been more for ritual or formal separation than for military purposes. Diseases transmitted among the large, dense urban population are another possible cause of decline. Many recent theories propose conquest-induced political collapse as the primary reason for Cahokia’s abandonment.[28]

Related Mounds

St. Louis as seen from Monks Mound

Until the 19th century a series of similar mounds existed in what is now the city of St. Louis, some 20 km to the south west of the Cahokia site. Most of these mounds were levelled during the construction of St. Louis, as their material was reused in construction projects.

The lone survivor of these mounds is the Sugarloaf Mound, which is located on the west bank of the Mississippi, on the former border between St. Louis and the autonomous city of Carondelet.

The Cahokia Museum and Interpretive Center

Museum and Interpretive Center

The Cahokia Museum and Interpretive Center, which receives up to a million visitors a year, was designed by AAIC Inc. The building which opened in 1989 received the Thomas H. Madigan Award, the St. Louis Construction News & Reviews Readers Choice Award, the Merit Award from the Metal Construction Association and the Outstanding Achievement Award from the Brick Manufacturer Association.

See also

References

  1. ^ a b c "Cahokia Mounds". National Historic Landmark summary listing. National Park Service. http://tps.cr.nps.gov/nhl/detail.cfm?ResourceId=682&ResourceType=Site. Retrieved 2008-07-23. 
  2. ^ a b c "Cahokia Mounds State Historic Site, Illinois", US World Heritage Sites, National Park Service, accessed 13 May 2009
  3. ^ Sacredland.org "Mississippian Mounds", Sacred Land Film Project
  4. ^ "United States of America - UNESCO World Heritage Centre". UNESCO World Heritage Centre. 2009-03-11. http://whc.unesco.org/en/statesparties/us. Retrieved 2009-03-11. 
  5. ^ "Congressional representative letter". Cahokia Mounds State Historic Site. http://cahokiamounds.org/learn/congressional-representative-letter/. Retrieved 2011-10-30. 
  6. ^ James M. Collins, The archaeology of the Cahokia Mounds ICT-II, Springfield IL, Illinois Historic Preservation Agency (1990) ISBN 0-942579-10-0
  7. ^ Emerson, Thomas E., Lewis, R. Barry Cahokia and the Hinterlands: Middle Mississippian Cultures of the Midwest University of Illinois Press; New edition (30 Jun 2000) ISBN 978-0-252-06878-2 pp.33 & 46
  8. ^ Townsend, Richard F, Robert V. Sharp, Garrick Alan Bailey (2000) Hero, Hawk, and Open Hand: American Indian Art of the Ancient Midwest and South. Yale University Press. ISBN 0-300-10601-7. Searchable at: [1].
  9. ^ a b Skele, Mike (1988). "The Great Knob". Studies in Illinois Archaeology (Springfield, Illinois: Illinois Historic Preservation Agency) (4). ISBN 0942579038. http://www.archive.org/stream/greatknobinterpr00skel#page/102/mode/2up. 
  10. ^ Snow, Dean (2010). Archaeology of Native North Americas. Upper Saddle River, NJ: Prentice Hall. pp. 202. 
  11. ^ "Monks Mound Slump Repair", Page 1
  12. ^ Wittry, Warren L., "An American Woodhenge," Cranbrook Institute of Science Newsletter, Vol. 33(9), pages 102-107, 1964; reprinted in Explorations into Cahokia Archaeology, Bulletin 7, Illinois Archaeological Survey, 1969.
  13. ^ Wittry, Warren L. "Discovering and Interpreting the Cahokia Woodhenges", The Wisconsin Archaeologist, Vol. 77(3/4), pages 26-35.
  14. ^ Friedlander, Michael W., "The Cahokia Sun Circles", The Wisconsin Archeologist, Vol. 88(1), pages 78-90, 2007.
  15. ^ Art Archives:pxartxx7clr2.jpg
  16. ^ Chappell, Sally Anderson (2002) Cahokia: Mirror of the Cosmos. University of Chicago Press. ISBN 0-226-10137-1. Page 100.
  17. ^ Timothy R., Pauketat (2009). Cahokia : Ancient Americas Great City on the Mississippi. Viking Press. pp. 23-34. ISBN 978-0-670-02090-4. "Pg 23 "Cahokia was so large-covering three to five square miles-that archaeologists have yet to probe many portions of it. Its centerpiece was an open fifty-acre Grand Plaza, surrounded by packed-clay pyramids. The size of thirty-five football fields, the Grand Plaza was at the time the biggest public space ever conceived and executed north of Mexico."...Pg 34 "a flat public square 1,600-plus feet in length and 900-plus feet in width" 
  18. ^ "Illinois Agriculture-Technology-Hand tools-Native American Tools". http://www.museum.state.il.us/exhibits/agriculture/htmls/technology/hand_tools/tech_hand_na.html. Retrieved 2010-07-12. 
  19. ^ Lowery, Malinda Maynor. "Civilization is All Relative". Teachinghistory.org. http://teachinghistory.org/history-content/ask-a-historian/24467. Retrieved 2011-06-30. 
  20. ^ "CAHOKIA AND THE EXCAVATION OF MOUND 72". http://www.lithiccastinglab.com/gallery-pages/2001augustmound72excavation1.htm. Retrieved 2010-08-21. 
  21. ^ Young & Fowler, p. 148.
  22. ^ Young & Fowler, pp. 146-149.
  23. ^ a b Pawlaczyk, George (16 Feb 2010), Copper men: Archaeologists uncover Stone Age copper workshop near Monk's Mound., http://sci.tech-archive.net/Archive/sci.archaeology/2010-02/msg00225.html, retrieved 2010-11-08 
  24. ^ "Tejas". http://www.texasbeyondhistory.net/tejas/fundamentals/images/prec41.html. Retrieved 2010-07-30. 
  25. ^ "Aztalan – Wisconsin's Middle Mississippian Outpost". Milwaukee Public Museum. http://www.mpm.edu/collections/artifacts/anthropology/aztalan/outpost/. Retrieved 2010-07-30. 
  26. ^ Young & Fowler p.301
  27. ^ Pyburn, K. Anne, Ungendering Civilization Routledge; 1 edition (29 Jan 2004) ISBN 978-0-415-26058-9 [2]
  28. ^ Emerson 1997, Pauketat 1994.

Further reading

External links



 
 
Related topics:
Cahokia (village of southwest Illinois)
Collinsville (city, Illinois)
East Saint Louis (city, Illinois)

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