🛠️ Invention or technique

Silver by weight as money standard

Plata pesada como patrón de valor y dinero

Date
c. 2500 BCE · confidence medium
Place
Ur, Ebla and Kanesh (Kültepe), Mesopotamia / Syria / Anatolia
Credited to
Sumerians and Akkadians; Assyrian merchants of Kanesh
Field
Communication

⚠️ Disputed: the sources disagree.

What it is

Use of silver in rings, coils and weighed pieces (hacksilber) as a unit of account and means of payment, with prices fixed in silver shekels and interest rates of 20%. It is money without struck coinage, 1,800 years before Lydia.

Barley remained a parallel standard for internal payments; in Egypt the standard was the copper deben and grain until a late period.

What it led to

  • Prices, wages and fines expressed in a common unit, enabling economic calculation
  • Commercial credit, bills of exchange and trading companies (Assyrian colonies of Kanesh, c. 1900 BCE)
  • Debt, compound interest and periodic royal edicts cancelling debts
  • Long-distance trade in tin and textiles with private capital
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Sources✓ verified 2026-09-25