CodexMira
DeepEarlyNeolithicBronze AgeIron Age and ClassicalMedievalEarlyModern

Serpent Mound

Geoglyph and Earthwork

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A 400 m earthen serpent. Researchers still disagree on which culture built it.

ContinentNorth AmericaConfidence: disputed
MaterialEarth and stoneMohs 1-3 (mineral hardness scale)

Claims

FieldConsensusAlternative
Date

300 BCE - 1100 CE

Debated: c. 300 BCE or c. 1070 CE

Ohio History Connection
No claims found.
Purpose

Ceremonial effigy

Ohio History Connection
No claims found.
MethodNo claims found.No claims found.
Sources: Ohio History Connection

Iron Age and Classical — Serpent Mound in context.

Iron Age and Classical, 1,200 BCE to 500 CEDates supported by mainstream archaeology. Natural formations remain undated.TimelinePavlopetri, 3,000 BCE - 1,100 BCEUffington White Horse, 1,380 BCE - 550 BCESerapeum galleries, 1,390 BCE - 30 BCEThonis-Heracleion, 700 BCE - 100 BCESerapeum boxes, 664 BCE - 30 BCE4Antikythera mechanism, 205 BCE - 60 BCEAl-Khazneh, Petra, 300 BCE - 100 CE3Colosseum, 70 CE - 80 CE2Aksum stelae, 300 CE - 400 CESerpent Mound, 300 BCE - 1,100 CEGreat Wall of China, 700 BCE - 1,644 CEPavlopetriSerapeum galleries1,000 BCE500 BCE0 CE

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Approximate - counted from January 1, 400 CE (UTC). Based on the midpoint of 300 BCE - 1,100 CE.

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