Gold: A Single Promise
Paper banknotes could always be exchanged for a fixed amount of gold. This promise, believed in by the 19th-century world, was a system based on the premise that not everyone would doubt it at the same time. That premise collapsed with every war.

In the 19th century, the world united under a single promise: the gold standard. Paper banknotes could always be exchanged for a fixed amount of gold. What kind of system supported this promise?
Gold as a Measuring Stick
The gold standard is a system that links the value of a currency to a specific amount of gold. If each country defines its currency by a weight of gold, the exchange rates between them are automatically determined. This had the advantage of creating an international standard without negotiations between countries.
Backed by the power of the British Empire, gold-backed currency circulated the globe. It was only because of this backing in gold that people trusted pieces of paper.
A System Premised on Trust
However, the amount of gold and the amount of currency were not linked on a one-to-one basis. No country held enough reserves to cover the full value of the banknotes it issued. In other words, the amount of currency in circulation was always greater than the amount of gold.
The promise that paper could be exchanged for gold worked best when few people came to exchange it. If everyone demanded to exchange their notes at the same time, no country could comply. The gold standard was a system based on the premise that not everyone would doubt it at once.
Constraints and Flaws
This system also came at a cost. It was difficult to freely adjust the money supply for domestic reasons. In times of recession or war, if the money supply was increased beyond gold reserves, it was the promise of convertibility that would break first.
And that premise often collapsed. When the constraints became unbearable, convertibility could be suspended. This happened with the Bank of England in 1797 and in France in 1848. It occurred with every war and crisis. The system collapsed between the two World Wars because of its own rigidity.
A Brief Golden Age
On the other hand, some countries only managed to reach this system much later. One was Greece, after a long period of inconvertibility. After prices stabilized and the paper drachma regained its value, Greece adopted a consistent gold standard for the first time since its founding in March 1910, with Law 3642.
This stability lasted for four years, until 1914. It was a brief period of brilliance that later generations would call a golden age.
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The Accounts of a Kingdom Facing South and Beyond the Sea
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