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.

5 results for "indigo"

U_3_02 Verified Art, Music & Culture

U_3_02 — Untitled

Textile arts represent one of humanity's oldest and most informationally dense technologies — encoding cultural knowledge, social identity, mathematical systems, trade networks, and historical narratives within fiber, pa

textiles khipu quipu kente weaving Jacquard loom
J_2_08 Verified Ancient Technology

J_2_08 — Ancient Pigments, Paints, and Dye Chemistry

The human use of pigments and colorants — minerals, biological materials, and synthetic compounds used to impart color to surfaces and textiles — is one of the oldest and most culturally significant technologies, with ev

pigment dye paint ochre hematite red ochre
J_2_02 Verified Ancient Technology

J_2_02 — Ancient Textiles — Weaving, Dyeing, and Fiber Technology

Ancient textile production represents one of humanity's oldest and most sophisticated technologies, with dyed flax fibers from Dzudzuana Cave (Georgia) dated to approximately 34,000 BP pushing the origins of fiber techno

textiles weaving dyeing Tyrian purple silk linen
B_4_09 Verified Beings & Entities

B_4_09 — Skin-Walker, Wendigo, and Indigenous Predatory Spirits

Indigenous North American spiritual traditions include powerful predatory spirit entities whose cultural significance, cosmological depth, and moral weight far exceed their common (and often distorted) depictions in popu

skin-walker yee naaldlooshii wendigo windigo witiko wiindigoo
F_2_21 Credible Lost Connections

F_2_21 — Ancient Pigment and Dye Trade Routes

Pigments and dyes ranked among the most valuable traded commodities in the ancient world — sometimes rivaling precious metals in cost per unit weight. Lapis lazuli traveled over 4,000 km from mines in Badakhshan (Afghani

pigment-trade tyrian-purple lapis-lazuli indigo cochineal vermillion