July 30, 2026 • 12:30 PM
In the Beginning Was the Ledger
The usual history of money runs from barter to coins, from coins to banknotes, and eventually to bank accounts and bank credit.
Read MorePSP publishes a long-form weekly essay. Each piece sets a current development
Inside the longer arc that produced it. Mesopotamian credit.
Over time the essays collect into a book on the history of payments and commerce.
The usual history of money runs from barter to coins, from coins to banknotes, and eventually to bank accounts and bank credit.
Read More100 essays exploring how money, technology and payment systems have evolved.
A long-running project exploring the history of payments, from ancient monetary systems to the digital infrastructure of today.
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