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Search 3,721 documents across 34 fields — every claim tier-rated by evidence

3,721 Documents 34 Sections 43,625 Citations 34,852 Keywords Indexed 4 Evidence Tiers

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.

47 results for "Mesoamerican obsidian" — page 3 of 3

F_2_01 Verified Lost Connections

F_2_01 — Bronze Age Trade Networks

Bronze Age trade networks provide a documented, testable middle ground between independent invention and lost-civilization contact as explanations for shared cultural motifs across the ancient world. If tin from Cornwall

Bronze Age Uluburun tin lapis lazuli obsidian trade

F_4_31 Verified Lost Connections

F_4_31 — Lapita Culture: Origins of Pacific Colonization

The Lapita cultural complex (c. 1500–500 BCE) represents the archaeological signature of the first human colonization of Remote Oceania — the islands beyond the Solomon chain that had never been inhabited by any hominid.

lapita pacific colonization austronesian pottery melanesia polynesia

F_3_05 Verified Lost Connections

F_3_05 — Writing System Origins and Independent Inventions

Writing was independently invented at least four times in human history: Sumerian cuneiform in Mesopotamia (~3400 BCE), Egyptian hieroglyphs (~3200 BCE), Chinese script (~1200 BCE with possible earlier precursors), and M

writing systems cuneiform hieroglyphs oracle bones Mesoamerican script Indus script

ZC_4_10 Verified Social Science

ZC_4_10 — Mesoamerican Social Organization: City-States, Lineages, and Cosmological Order

Mesoamerican social organization — spanning the Classic Maya (~250–900 CE), Aztec/Mexica (~1325–1521 CE), Zapotec, Mixtec, and other civilizations across central Mexico through Honduras — represents one of humanity's mos

Mesoamerica Maya Aztec city-state altepetl calpulli

ZH_5_20 Verified Archaeoastronomy

ZH_5_20 — Maya Calendar Systems: Cycles of Time and Cosmic Order

The Maya calendar system represents one of the most sophisticated timekeeping frameworks developed by any civilization, integrating multiple interlocking cycles to track sacred, civil, agricultural, and cosmic time over

Maya calendar Long Count Tzolkin Haab Calendar Round Maya astronomy

E_5_04 Verified Cataclysms & Chronology

E_5_04 — Maya Classic Period Collapse

The Maya Classic Period Collapse (c. 800–1000 CE) was the dramatic and largely irreversible abandonment of dozens of major lowland Maya city-states across the southern Maya lowlands (modern-day Guatemala, Belize, western

Maya collapse Classic Maya Terminal Classic drought megadrought Tikal

D_4_09 Verified Sites & Artifacts

D_4_09 — Cenotes: Maya Sacred Wells, Karst Hydrology, and Underworld Cosmology

Cenotes (from Yucatec Maya dz'onot or ts'onot) are natural sinkholes formed by the dissolution and collapse of limestone bedrock in the Yucatan Peninsula, exposing the vast underground freshwater aquifer beneath. Over 6,

cenote dz'onot Yucatan karst Chichén Itzá Sacred Cenote Maya sacrifice

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