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Track A · FoundationsNode A1

Why money exists

Layer 1 · Pocket

The thirty-second answer

~ 30s read

The first "money" wasn't a coin — it was a debt entry on a Mesopotamian clay tablet, three thousand years before anyone struck a coin. Barter never happened.

If you start from barter, today's dollar is an IOU for gold. If you start from the tally, the dollar is an IOU for everything else — and that split shapes every monetary argument you'll ever hear.

A clay tablet covered in cuneiform marks on the left; a small gold coin on the right; a dashed arrow between them spans roughly 2,300 years.
Temple ledger, ~3000 BCE. Coin, ~700 BCE. Money was an accounting unit for millennia before it was a thing.