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This was a sophisticated mercantile economy in which paper money was supplied by private enterprise and credit was based on the sale of contracts for the future supply of salt to the government – a commodity for which demand was exceptionally stable.
John Darwin • After Tamerlane: The Rise and Fall of Global Empires, 1400-2000
Any user of a map or model must realize that we do not understand a model, map, or reduction unless we understand and respect its limitations. If we don’t understand what the map does and doesn’t tell us, it can be useless or even dangerous.
Rhiannon Beaubien • The Great Mental Models Volume 1: General Thinking Concepts
Apart from a very limited amount of state sponsorship, it was usually the prospect of commercial gain or of new lands for settlement which funded exploration – a misleading term, which usually signified the ‘mapping’ of existing trade paths through local informants. But the propulsion of economic or demographic need was spasmodic at best.
John Darwin • After Tamerlane: The Rise and Fall of Global Empires, 1400-2000
David Rumsey Historical Map Collection | The Collection
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