Poverty Point: a 1.14-km earthwork complex 3,400–3,700 years old, Mound A raised in under three months (northeast Louisiana; about 1700–1100 BCE)

SUMMARYPoverty Point: a 1.14-km earthwork complex 3,400–3,700 years old, Mound A raised in under three months (northeast Louisiana; about 1700–1100 BCE) [Connections: Tech of the Americas, Nov 5, 2026]

RECORDUNESCO: built "3,700-3,100 years ago in the Late Archaic period" by "hunter-fisher-gatherers," with "six semi-elliptical earthen ridges with an outer diameter of 1.14 km" and "Mound A, one of the largest constructed earthen mounds in North America." Wikipedia (citing Kidder, Ortmann & Arco 2008): Mound A holds about "8,400,000 cubic feet (238,000 cubic meters) of fill" and "was constructed quickly, probably over a period of less than three months." Copper: once assumed to be from the Great Lakes, analysis now shows "at least some of the copper artifacts... were made from materials available in the southern Appalachian Mountains" (Hill, Greenlee & Neff 2016)

PATTERNMass engineering and long-distance material sourcing without farming towns or kings, which breaks the "civilization needs agriculture" rule

LENS (WW9)Earth engineering on a city scale, built fast, by people the textbooks file under "Archaic."

OPENThe UNESCO page's "hunter-fisher-gatherers" label is a scholarly classification; how the builders organized labor needs deep research

SOURCEUNESCO, Poverty Point; Wikipedia, "Poverty Point".