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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.

106 results for "African metallurgy" — page 6 of 6

N_5_00 Secret Societies

N_5_00 — Modern Cultural Esoteric: Subfolder Summary

F_2_00 Lost Connections

F_2_00 — Trade Networks Exchange: Subfolder Summary

F_2_06 Verified Lost Connections

F_2_06 — Tin Sources and the Bronze Age Mystery

The Bronze Age (c. 3300–1200 BCE) depended fundamentally on tin — the scarce metal alloyed with copper to produce bronze (typically 88–92% copper, 8–12% tin). While copper was widely available across the Mediterranean, N

tin cassiterite Bronze Age bronze copper-tin alloy Cornwall

F_2_13 Credible Lost Connections

F_2_13 — Copper Trade Networks: Great Lakes to Mediterranean

The Great Lakes copper deposits — particularly the vast deposits of native (naturally pure) copper on the Keweenaw Peninsula and Isle Royale of Michigan's Upper Peninsula — represent one of the world's most remarkable mi

copper native copper Great Lakes Lake Superior Isle Royale Keweenaw

F_3_00 Lost Connections

F_3_00 — Diffusion Spread Knowledge: Subfolder Summary

F_0_00 Lost Connections

F_0_00 — Lost Connections: Section Summary

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