It seems like the most ordinary thing in the world. A pinch of white crystals. A shaker on your table. You barely notice it.

But salt built empires. It funded revolutions. It got people killed. And quietly — invisibly — it still runs the modern world.

In this episode, Aiden Thomas traces the six-thousand-year story of salt: from a city built entirely from salt blocks deep in the Sahara, where enslaved workers mined the world's most valuable substance while Arab merchants traded it pound for pound for gold — to the French king who taxed it so brutally it helped spark a revolution — to the morning in 1930 when Gandhi walked 241 miles to the sea to pick up a handful of it and shook the British Empire.

You'll learn why Roman soldiers were partly paid in salt — and why that word is still in your paycheck today. You'll discover that the Chinese were drilling underground wells for brine over two thousand years before anyone struck oil in Pennsylvania.

And you'll find out how a Florida kidney doctor, trying to fix a football team's heat problem in 1965, accidentally invented a $9 billion industry built on a 6,000-year-old idea.

Oh — and that Morton Salt girl with the umbrella? That story is stranger than you think.

It wasn't just a seasoning. It was the infrastructure of civilization itself.

Hidden History with Aiden Thomas — the surprising stories behind the everyday objects you take for granted.

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