Cover image of show The Hidden History Podcast

The Hidden History Podcast

Podcast by Aiden Thomas

English

History & religion

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About The Hidden History Podcast

You use them every day. You've never thought twice about them. And yet — the objects in your home have stories more dramatic, more political, and more surprising than anything you'd find in a history textbook.The Hidden History Project is a narrative history podcast hosted by Aiden Thomas, uncovering the untold stories behind the everyday inventions that built the modern world. From the refrigerator that reshaped entire cities, to the dishwasher that quietly changed women's rights — every invention has a secret past. And it's more dramatic than you'd think.Each episode drops you inside a specific moment in history and follows the forgotten figures, accidental discoveries, and world-changing consequences that your textbooks left out.New episodes every week. Subscribe wherever you listen to podcasts.

All episodes

15 episodes

episode The History of Salt artwork

The History of Salt

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. New episodes every week. Follow wherever you listen.

21 May 2026 - 27 min
episode Shampoo Was Brought to England by and Indian Immigrant — And Nobody Remembers His Name artwork

Shampoo Was Brought to England by and Indian Immigrant — And Nobody Remembers His Name

For most of human history, "washing your hair" meant rinsing it with water and soap and trying to mitigate soap scum. The word shampoo didn't even exist in English until one man brought it across an ocean — and changed how the Western world bathes. His name was Sake Dean Mahomed. An Indian immigrant, entrepreneur, and storyteller who arrived in 19th-century Britain and opened a "shampooing" bath house in Brighton.  King George IV made him the royal Shampooing Surgeon. He invented the modern hair-care ritual. And almost nobody knows his name. In this episode of Hidden History with Aiden Thomas, we trace shampoo from ancient Indian champu head massages — the Sanskrit word that became the English one — through the soap-and-water improvisations of pre-Victorian Europe, to the apothecary bottles and synthetic surfactants that fill your shower today. It wasn't a beauty product. It was a 4,000-year-old wellness tradition that crossed an empire and built an industry. Take a look around. History is everywhere.

14 May 2026 - 16 min
episode The Toothbrush Was Invented in a Prison Cell artwork

The Toothbrush Was Invented in a Prison Cell

London. 1770. A prison cell. William Addis had been arrested. He was bored. And he was looking at his teeth in the reflection of a tin cup, scrubbing them the same way everyone did back then — with a rag and some soot. Then he had an idea. He saved a leftover bone from his dinner. Drilled holes in it. Begged a guard for a few stiff bristles. And invented something that 5,000 years of human civilization had failed to invent. In this episode of Hidden History with Aiden Thomas, we follow the toothbrush from ancient Babylonian chew sticks through frozen Siberian pig hair to the WWII nylon revolution that put a brush in every bathroom with an order to use it daily. It wasn't dental hygiene. It was a prison cell breakthrough. Take a look around. History is everywhere.

11 May 2026 - 17 min
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