RESEARCH BASE

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.

8 results for "sword blade"

J_2_06 Verified Ancient Technology

J_2_06 — Damascus Steel and Wootz

Damascus steel — the legendary blade material prized for its distinctive watered pattern (bands of light and dark on the polished surface), exceptional cutting ability, and reputed capacity to cut silk falling on the bla

Damascus steel wootz crucible steel pattern-welded carbon nanotubes cementite
A_4_04 Verified Foundations

A_4_04 — The Kojiki: Japan's Record of Ancient Matters

The Kojiki ("Record of Ancient Matters"), completed in 712 CE, is the oldest surviving literary work in Japan and the primary source for Shinto mythology and the divine origin of the Japanese imperial line. Compiled by Ō

Kojiki Record of Ancient Matters Japan Shinto Amaterasu Izanagi
C_2_04 Verified Global Traditions

C_2_04 — Indonesian Naga & Southeast Asian Serpent Traditions

Southeast Asia possesses one of the densest concentrations of living naga/serpent traditions on Earth. From the cosmic serpent Antaboga of Java to the naga fireballs of the Mekong, from the naga princesses of Khmer dynas

Naga Indonesia Antaboga Batak Padoha Cambodia
J_2_01 Verified Ancient Technology

J_2_01 — Ancient Metallurgy and Experimental Archaeology

Ancient metallurgy represents some of humanity's most sophisticated material science, including achievements that weren't replicated until centuries or millennia later. Damascus/wootz steel contains carbon NANOTUBES — di

ancient metallurgy bronze age iron smelting smelting crucible steel wootz steel
J_4_01 Verified Ancient Technology

J_4_01 — Trepanation and Ancient Neurosurgery

This document examines Trepanation and Ancient Neurosurgery, a topic within the Ancient Technology research area. Key areas of investigation include Definition and Terminology, Antiquity and Scope, The Peruvian Concentra

trepanation trephination craniotomy skull surgery John Verano Paracas
D_5_13 Verified Sites & Artifacts

D_5_13 — Obsidian: Volcanic Glass in Technology, Trade, and Ritual

Obsidian — a naturally occurring volcanic glass formed when felsic lava cools rapidly with insufficient crystal growth — is one of the most important materials in human technological and cultural history. Prized for its

obsidian volcanic glass lithic technology obsidian hydration dating Çatalhöyük Mesoamerican obsidian
S_5_14 Credible Future Technology

S_5_14 — Digital Identity: Biometrics, Self-Sovereign Identity, and Authentication

Digital identity — the set of attributes, credentials, and identifiers that represent a person in digital systems — is fundamental to online commerce, government services, healthcare, travel, and social interaction. An e

digital identity biometrics fingerprint facial recognition iris scan authentication
F_2_04 Verified Lost Connections

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

obsidian obsidian sourcing XRF analysis neutron activation analysis Çatalhöyük Göbekli Tepe