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DeepEarlyNeolithicBronze AgeIron Age and ClassicalMedievalEarlyModern

Cahokia Woodhenge

Geoglyph and Earthwork

Description

Cahokia Woodhenge is a geoglyph and earthwork in United States, North America. UNESCO World Heritage List: Cahokia Mounds State Historic Site dates it to c. 1000-1100 CE. UNESCO World Heritage List: Cahokia Mounds State Historic Site also records: “Solar calendar.”

Rings of wooden posts marking solstice and equinox sunrises over Monks Mound.

Media

Photo

Photo: hakkun, CC BY-SA 3.0 via Wikimedia Commons - https://web.archive.org/web/20161028090517/http://www.panoramio.com/photo/90983908

AI responses

Guide answers and timeline insights related to this Wonder.

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Medieval — Cahokia Woodhenge in context.

Medieval, 500 CE to 1,500 CEDates supported by mainstream archaeology. Natural formations remain undated.Timeline612532621366552351055613132672111415600 CE800 CE1,000 CE1,200 CE1,400 CE

Claims

Compare the published evidence and its interpretations. “Consensus” records the mainstream account; “Alternative” identifies a competing interpretation, not an equally established conclusion. Estimates and unresolved questions remain qualified in the claim text.

FieldConsensusAlternative
Date

1000 CE - 1100 CE

c. 1000-1100 CE

UNESCO World Heritage List: Cahokia Mounds State Historic Site
No claims found.
Purpose

Solar calendar

UNESCO World Heritage List: Cahokia Mounds State Historic Site
No claims found.
MethodNo claims found.No claims found.

Precision & Alignment

consensusAlignment

Posts mark the solstice and equinox sunrises

UNESCO World Heritage List: Cahokia Mounds State Historic Site
Sources: UNESCO World Heritage List: Cahokia Mounds State Historic Site

Calculating elapsed time...

Approximate - counted from January 1, 1,050 CE (UTC). Based on the midpoint of 1,000 CE - 1,100 CE; the underlying date is uncertain.

Separate totals since January 1, 1,050 CE (UTC)
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