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.
82 results for "obsidian hydration dating" — page 2 of 5
Y_5_13 — Starvation and Dehydration: Cognitive Effects of Deprivation States
Starvation and dehydration — states of severe and prolonged nutritional and fluid deprivation — produce a characteristic and well-documented progression of cognitive, perceptual, and emotional alterations that constitute
F_2_04 — Obsidian Trade Networks: Archaeological Tracers of Ancient Exchange
Obsidian — naturally occurring volcanic glass formed when felsic lava cools rapidly — was one of the most valued materials in the prehistoric world. Its conchoidal fracture produces the sharpest edges known (thinner than
M_4_08 — Sphinx Water Erosion Hypothesis
The Sphinx Water Erosion Hypothesis is the controversial geological argument that the Great Sphinx of Giza and its surrounding enclosure walls show erosion patterns consistent with prolonged exposure to rainfall (precipi
M_2_17 — Sphinx Water Erosion Hypothesis — Schoch Debate
The Sphinx water erosion hypothesis (WEH) — the geological argument that the Great Sphinx of Giza and its enclosure show erosion patterns consistent with prolonged rainfall rather than wind-blown sand, potentially indica
E_4_14 — Stratigraphic Methods and Geological Timekeeping
Stratigraphy — the study of rock layers (strata) and their sequential relationships — is the foundational framework for understanding geological time and establishing the chronology of Earth's 4.54-billion-year history.
E_4_25 — Bayesian Age Modeling: Statistical Frameworks for Archaeological Chronology
Bayesian age modeling — the application of Bayesian statistical inference to combine radiocarbon dates with prior archaeological knowledge (stratigraphy, typology, historical constraints) to produce refined chronological
M_5_05 — Archaeological Hoaxes and Forgeries — A Cautionary Catalog
The history of archaeology is punctuated by famous frauds, hoaxes, and forgeries — intentional deceptions that have misled researchers, distorted public understanding, and, in some cases, caused decades of wasted scholar
M_3_04 — Ancient Mining and Tunneling Technology
Ancient mining and tunneling represent some of humanity's most technically demanding and dangerous engineering achievements, dating from Paleolithic flint mines (Grimes Graves, England, c. 3000 BCE; Spiennes, Belgium, c.
M_2_12 — Çatalhöyük — Neolithic Revolution and Anomalous Urbanism
Çatalhöyük (pronounced "chah-tahl-hö-yük") — a Neolithic proto-city on the Konya Plain of south-central Turkey, occupied approximately 7500–5700 BCE — is one of the most important archaeological sites in the world for un
M_2_04 — Longyou Caves — China's Mysterious Hand-Carved Caverns
The Longyou Caves are a group of at least 24 large, hand-carved underground caverns discovered in 1992 near Longyou village, Quzhou prefecture, Zhejiang Province, southeastern China.
M_1_09 — Voynich Manuscript — Undeciphered Text Analysis
The Voynich Manuscript (Beinecke Rare Book and Manuscript Library, Yale University, catalog number MS 408) is a hand-written, lavishly illustrated codex of approximately 240 vellum pages (c. 234 surviving, some missing)
U_3_08 — Glassmaking and Stained Glass
Glass — an amorphous solid formed by rapidly cooling molten silica (SiO₂) with fluxes (soda/potash to lower melting temperature) and stabilizers (lime to prevent water solubility) — has been manufactured for ~5,000 years
U_5_06 — Art Forgery and Authenticity
Art forgery — the creation of works intended to deceive buyers, dealers, or institutions into believing they are by another (usually more famous or valuable) artist — is as old as the art market itself and raises profoun
U_2_02 — Cave Art — Lascaux, Chauvet & World's Oldest Paintings
Cave art constitutes the oldest known evidence of symbolic visual expression by Homo sapiens (and possibly Neanderthals), with the earliest confirmed figurative painting — a narrative hunting scene at Leang Karampuang, S
W_4_02 — Polynesian Navigation and Rapa Nui
The Polynesian settlement of the Pacific Ocean — the largest migration in human prehistory — colonized virtually every inhabitable island across 16 million km² of open ocean using non-instrument navigation techniques of
W_1_23 — Pre-Pottery Neolithic B (PPNB)
The Pre-Pottery Neolithic B (PPNB, c. 8800–6500 BCE) represents one of the most transformative periods in human history — the era when small communities of early farmers in the Levant and Upper Mesopotamia scaled up into
W_3_24 — Nok Culture
The Nok culture (c. 1500 BCE – 500 CE) of central Nigeria produced sub-Saharan Africa's earliest-known large-scale terracotta sculpture tradition and some of the continent's earliest evidence for iron smelting. First ide
W_2_01 — Jōmon People and Pre-Yamato Japan
This document examines Jōmon People and Pre-Yamato Japan, a topic within the Global Traditions research area. Key areas of investigation include Chronological Framework, The Oldest Pottery in the World, Population and Se
W_5_12 — Lapita Culture: Pacific Colonization and Pottery Horizon
The Lapita cultural complex (c. 1600/1500–500 BCE) was the foundational maritime culture that colonized Remote Oceania — transforming the Pacific from a barrier into a highway and ultimately giving rise to the Polynesian
ZH_1_21 — Dendera Zodiac
The Dendera Zodiac — a circular bas-relief approximately 2.5 meters in diameter carved on the ceiling of a chapel in the Temple of Hathor at Dendera, Egypt — is the most complete surviving depiction of the ancient sky fr
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