How ancient Mesopotamians solved runaway debt | The Story of Money

ELI5/TLDR

About 4,000 years ago in what is now Iraq, ordinary people kept falling into debt they couldn’t repay — bad harvest, high interest, and suddenly you’ve handed your kids over to your lender to work off what you owe. Kings had a fix: every so often, usually when a new king took the throne, they’d cancel all the debts of the poor and physically smash the clay tablets the loans were recorded on. People walked free, the economy got a reboot, and the king looked generous. It worked well enough that they did it roughly 30 times over three centuries.

The Full Story

This is an episode of the Financial Times’ new podcast The Story of Money, hosted by anthropologist-turned-columnist Gillian Tett and finance journalist Robin Wigglesworth, with guest Amanda Podany, a historian of ancient Mesopotamia. The whole thing hangs on one object: a seven-foot black stone pillar in the Louvre, carved with the laws of a Babylonian king named Hammurabi.

A world made of clay

Mesopotamia — modern Iraq, plus bits of Syria — gave us the world’s first cities, around 3,300 BCE. Two lucky accidents mean we know an extraordinary amount about how they lived. First, they invented writing (called cuneiform — wedge-shaped marks). Second, they wrote on clay, which they had in endless supply from the river valley. Clay is durable. When a baked tablet got thrown away, it didn’t rot like paper; it just sat in the ground waiting to be dug up.

It’s a bit like having a vast collection of bank statements frozen in clay tablets from thousands and thousands of years ago.

So unlike Egypt (papyrus) or other cultures (parchment, skin), Mesopotamia left behind hundreds of thousands of documents — including loan records. That’s why we can reconstruct their economy in detail.

How you went broke in ancient Babylon

It was a farming economy. Most people grew barley or herded sheep and goats (wool for textiles, which were a major export — they had no metal ores or stone worth mentioning). The palace and the temples owned huge estates and paid their workers in plots of land or rations of grain.

Taxes and rents were owed every year. But if your field flooded or the rain failed, you couldn’t pay. So you borrowed — usually from a wealthy merchant — to cover your taxes, planning to repay after harvest. The catch: the standard interest rate on grain loans was 33⅓ percent. One bad year and you were underwater.

There were no coins yet. People paid in grain, or in silver weighed out on a scale (you’d snip a bit off a coil of silver and weigh it). Grain was heavy and a pain to ship, so a class of middlemen — “the overseer of the merchants” — collected grain taxes and converted them to silver for the king.

When you couldn’t repay, you pledged something: your house, your field, or your family. Lose your field and you’ve lost the very thing that could’ve earned you the grain to repay. Worse, people sold family members — or themselves — into debt slavery.

He would sell his wife and children before he’d sell himself into slavery.

This wasn’t permanent ownership like chattel slavery; it had an endpoint, once the debt was “worked off.” But that could be years. And it created a problem for the king himself: the labor he needed for his own economy was being quietly absorbed by private lenders. Too many people in debt, and the king was effectively losing control of his workforce — a fiscal crisis.

The reset button

The solution, in place for centuries before Hammurabi, was the debt cancellation — what’s sometimes called a debt jubilee. Think of it like switching the computer off and on again to get it running.

The earliest known example is a king named Enmetena, around 2450 BCE, who “canceled obligations, restored child to mother and mother to child” — meaning he freed children from debt slavery. The Sumerian word for this was amargi, literally “return to the mother.” It was their word for freedom.

(A nice aside: this overturns the old Adam Smith story that economies went barter → money → debt. The clay tablets show debt was there from the very start. Smith got it wrong, the podcast notes, partly because nobody could read cuneiform when he was writing.)

The trigger was usually a new king taking the throne. Hammurabi did it first thing when he came to power in 1792 BCE — and three times during his reign. Part vote-buying (or its ancient equivalent — kings could be overthrown if they weren’t seen as kind), part genuine economic housekeeping: wipe the slate, and you’ve got people who aren’t desperate anymore.

The mechanism was theatrical. The king declared a release, summoned his officials to the capital, and lit a golden torch as the symbol it had begun — possibly relayed as a fire signal city to city. Officials carried written copies of the rules back to their towns, set up committees, had everyone bring their loan contracts, sorted the canceled from the not, and then literally broke the clay tablets of the canceled debts.

They’re not slates, they’re clay tablets, but yes, they literally broke them.

Smashing the tablet wasn’t just symbolic — it was practical. No tablet, no proof, no way for a lender to come back and demand a debt that no longer existed. (The phrase “wipe the slate clean” is probably a later coincidence, not a literal memory of this.)

Honest lenders and watching gods

Crucially, only the debts of need were canceled — the poor and desperate. Commercial and business loans were left alone, because those operations were thriving and good for the economy. In modern terms: wipe out credit-card debt and mortgages, but not corporate loans.

What’s striking is how honestly people obeyed. Two surviving stories: a man named Pu-ili had pledged his field, and the lender had already harvested all its grain — then the release was announced, and Pu-ili got back not just his field but the entire harvest. And a lender named Natuptum couldn’t find the tablet for a loan she’d made, so she brought a clod of earth to the officials and asked them to break that in its place, with a note that the real tablet must be destroyed if it ever turned up.

Why so honest? Partly officials investigated cheating. But mostly: the gods. Mesopotamians had no word for “religion” — they couldn’t separate it from politics or economics. The sun god Shamash was watching. Break an oath and the gods would punish you.

If only prime ministers or central bank governors had the ability to terrify people into submission today.

Did it work, and does it teach us anything?

Hard to say for certain — the records are incomplete. But the economy does seem to have stabilized after each edict. The fact that they had to keep repeating them (roughly 30 across the 300-year dynasty) suggests it never permanently fixed the underlying problem. The releases were also deliberately unpredictable — you couldn’t time them, so you couldn’t fully game them.

The lenders took the hit, but it was softened: their own overdue taxes and interest to the king were canceled at the same time. The king ate some of the loss too.

The hosts land on healthy skepticism. Robin points out the obvious modern objection: one person’s debt is another’s asset. If wholesale cancellation were predictable, “people would game the crap out of it,” and lenders would just price the risk in by charging even higher interest. The Mesopotamian trick worked partly because it was unpredictable and partly because of a theology that doesn’t exist anymore.

The bigger frame comes from anthropologist David Graeber: when a financial system has no hard limit on how much credit it can create (unlike one tethered to something scarce like gold), debt tends to grow until you either restructure it or face a political explosion. Today’s quieter equivalents of the jubilee, the hosts note, are bankruptcy courts, inflation (which erodes debt as prices rise), and financial repression (holding bond yields below inflation so lenders subsidize the paydown).

Key Takeaways

Mesopotamia’s clay tablets survived where papyrus rotted, giving us an unusually detailed picture of an ancient economy — including its loan records.
The economy ran on grain and wool; there were no coins, so people paid in grain or in weighed-out silver.
Standard interest on grain loans was 33⅓ percent — one bad harvest could bury a farmer.
Defaulters pledged house, field, or family; unpaid debt led to debt slavery, which had an endpoint but could last years.
Mass private debt was a problem for the king, because lenders were absorbing labor he needed for his own economy.
Debt cancellations predate Hammurabi by centuries; the Sumerian word amargi (“return to the mother”) meant freedom.
Cancellations were typically declared at the start of a new reign — part populism, part economic reset.
The ritual: a golden torch lit in the capital, written rules carried out to the towns, and the physical breaking of clay loan tablets.
Only debts of need were forgiven; commercial loans were spared.
Lenders obeyed remarkably honestly — enforced by officials and by the belief that the gods were watching.
Roughly 30 releases happened over the ~300-year Hammurabi dynasty; they were unpredictable, so they couldn’t be easily gamed.
The find that made Hammurabi famous — his law code on a 7-ft stele — was unearthed in 1902 in Iran, not Iraq, and sits in the Louvre.
Debt came first, contradicting the old barter → money → debt story (Adam Smith couldn’t read cuneiform).

Claude’s Take

This is a good popular-history episode: a clear expert, a vivid central object, and two hosts who keep it moving without dumbing it down. The strongest move is that they don’t let the romance run away with them. It would be easy to spin “ancient kings forgave all debt” into a tidy lesson for modern policy, and Robin actively resists that — the bit about debt being someone else’s asset, and lenders simply pricing in the cancellation risk, is the honest counterweight that a lazier version would skip.

What’s missing is rigor on whether it actually worked. Podany is upfront that the records are incomplete, but the episode still leans on “it seems to have stabilized” without much beyond two anecdotes (Pu-ili, Natuptum) that are charming rather than statistical. The David Graeber framing is presented as settled wisdom; Graeber is influential but contested among economic historians, and that gets no flag. So treat the big “credit with no constraint always ends in explosion or jubilee” claim as a provocative thesis, not a proven law.

Seven out of ten: genuinely informative, well-told, and intellectually honest about its own limits, but it’s a 35-minute podcast doing breadth over depth, and the modern-relevance payoff stays at the level of suggestive analogy rather than real argument. Worth the listen for the texture of how an economy ran on clay and barley, and for the surprisingly durable idea that sometimes the only way to fix runaway debt is to declare that it simply no longer exists.