🛠️ Invention or technique

Bill of exchange

Letra de cambio

Date
c. 1250 · confidence medium
Place
Genoa and Florence, Italy (Champagne fairs)
Credited to
Italian merchant-bankers
Field
Communication

⚠️ Disputed: the sources disagree.

What it is

A document by which a merchant orders a sum received to be paid out in another place and currency, avoiding the transport of coin and evading the prohibition on usury. The basic instrument of international credit.

Islamic instruments (sakk, suftaja) of the 9th–10th centuries are clear precedents; the European form matured in the 13th–14th centuries.

What it led to

  • Italian banking networks (Bardi, Peruzzi, Medici) with branches across Europe
  • an exchange market and concealed interest rates
  • commercial law and endorsement, a precedent for the cheque
🕸️ View in the graph

Built on

Made possible

Links

Sources✓ verified 2026-09-25