RESEARCH BASE
Search 3,721 documents across 34 fields — every claim tier-rated by evidence
3,633 are the core, quality-scored corpus (34 lettered sections — see How We Work); the remaining 88 are cross-corpus synthesis documents (68 InterDocs, 12 Connections, 8 Theories) also indexed here.
5 results for "earthworks"
D_3_20 — Amazonian Geoglyphs & Pre-Columbian Earthworks
LiDAR surveys and systematic deforestation since the 1970s have revealed thousands of pre-Columbian geometric earthworks (geoglyphs) across western Amazonia, fundamentally overturning the long-held view of the Amazon as
ZH_3_10 — North American Mound Builders and Celestial Alignments
The mound-building cultures of eastern North America — spanning from Poverty Point (~1700 BCE) through the Adena (~800–100 BCE), Hopewell (~100 BCE–500 CE), Fort Ancient (~1000–1650 CE), and Mississippian (~800–1500 CE)
D_1_19 — Poverty Point: Louisiana's Enigmatic Archaic Earthwork Complex
Poverty Point is a Late Archaic period (approximately 1700–1100 BCE) earthwork complex located near the town of Epps in West Carroll Parish, northeastern Louisiana, on the Macon Ridge overlooking the floodplain of Bayou
M_5_18 — Mound Builders: Adena, Hopewell, Mississippian, and the Erasure of Indigenous Achievement
The "Mound Builders" refers to the diverse Indigenous North American cultures that constructed elaborate earthen mounds across eastern North America from approximately 3700 BCE (Watson Brake, Louisiana) through European
D_4_05 — LiDAR Archaeology: Revolutionary Remote Sensing Discoveries
LiDAR (Light Detection and Ranging) has transformed archaeology by enabling researchers to see through dense vegetation and map landscapes at centimeter-level resolution, revealing previously unknown structures, roads, c
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