Short Stuff: Did a shipwreck double the size of the United States?

August 19, 2026

AI Summary

5 min read

In 1993, a fisherman named Jerry Murphy was trolling in the Gulf of Mexico when his net came up with some debris he assumed was rocks. After contacting a lawyer and then history experts, it took about a year for anyone to tell him what he had actually found: the wreck of the El Cazador (The Hunter), a Spanish ship that disappeared in 1784. On board were 19 tons of newly minted silver coins, destined for New Orleans—the capital of the Spanish-owned Louisiana colony at the time. That shipwreck, and the economic chaos it caused, may have set off a chain of events that led to the Louisiana Purchase and doubled the size of the United States.

The Spanish Silver That Never Arrived

The El Cazador was carrying a massive hoard of silver reals from a mint in Veracruz, Mexico, to New Orleans. The reason was straightforward: New Orleans’ currency had become devalued due to counterfeiting and a shortage of hard cash. The Spanish crown needed the silver to pay soldiers and government officials in its Louisiana territory. When the ship went down, King Carlos III essentially lost 19 tons of silver forever. The loss was so severe that it made the king question whether holding onto Louisiana—a distant, expensive colony—was worth the trouble.

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What you'll learn

1 (00:31) **Setting the Stage: A Fisherman's Lucky Catch** - Jerry Murphy finds mysterious debris in his net in the Gulf of Mexico, assumes it's rocks, but it turns out to be treasure from a lost Spanish ship.
2 (03:43) **Spain's Louisiana Problem** - The *El Cazador* was carrying the silver to stabilize the currency in New Orleans, the capital of Spain's Louisiana colony, but its loss was a massive financial blow.
3 (05:04) **The Backstory: Louisiana Goes from France to Spain** - To understand the stakes, we go back to 1762 when France ceded Louisiana to Spain to keep it out of British hands.
4 (06:26) **Why New Orleans Was the Ultimate Prize** - The port of New Orleans was incredibly valuable because it was the key to moving goods from the entire continent to the rest of the world.
5 (09:01) **Napoleon's Ambition and a Slave Revolt** - France, now under Napoleon, wants Louisiana back, but a successful slave revolt in Haiti destroys Napoleon's plans for a Western empire.
6 (11:38) **Napoleon's Fire Sale and Jefferson's Big Deal** - Needing quick cash for a war with Britain, Napoleon decides to sell the entire Louisiana territory, and Thomas Jefferson jumps at the chance.
7 (13:18) **Connecting the Dots: The Shipwreck's Role** - The hosts clarify the core theory: this massive land deal only happened because the *El Cazador* shipwreck made Spain lose interest in Louisiana.

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Show Notes

Did a shipwreck double the size of the United States? Sort of. Listen in to find out what the heck that means.

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