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.

43 results for "circular economy" — page 3 of 3

F_2_07 Verified Lost Connections

F_2_07 — Salt Trade and Ancient Economies

Salt — sodium chloride (NaCl) — was arguably the most economically important commodity in the ancient and medieval world, rivaling gold and silver in its capacity to generate wealth, shape trade routes, and determine the

salt salt trade Hallstatt Wieliczka Saharan salt trade Taghaza

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_4_23 Credible Lost Connections

F_4_23 — Salt Trade Routes: The White Gold of Antiquity

Salt — essential for human survival (minimum ~500 mg sodium/day), food preservation, animal husbandry, and chemical processing — was one of the most traded commodities in human history, generating dedicated trade routes,

salt-trade saharan-trade roman-salt salary-etymology salt-roads timbuktu

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