What do Civil War pension files reveal about one of history's most successful slave rebellions? Historian Edda Fields-Black joins Roman to trace a story of fire, flight, and freedom — beginning on a South Carolina rice plantation in 1863, where a Union raid liberated over 700 people in a single night. By unearthing Black soldiers' testimonies buried in military pension applications, they resurrect not just the raid, but the lives and communities it transformed.

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Canada reshaped its music industry with a quirky radio rule that changed who got heard.

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In the early 20th century, nothing quite fit — fire hoses couldn't connect to one another, football teams played with different balls, traffic lights meant different things in different states. Then World War II exposed the deadly cost of incompatibility, and the US quietly imposed a single solution on production lines across the world: the 60-degree screw. Roman Mars and historian Daniel Immerwahr tell the story of a hidden industrial empire, built one standard at a time.

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What started as a revolutionary treatment for river blindness became something far messier.

Listen to Drug Story wherever you get your podcasts!

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In 1876, Americans filled an iron safe with objects meant to tell their story — to be opened a century later. Roman Mars and historian Jill Lepore trace its long wait, from Reconstruction to Watergate, and the surprising, unsettling contents that emerged in 1976. What do the objects we choose to preserve — or forget — reveal about how we author our own history?

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As wild and random as they might seem, a lot of work—and even poetry—goes into coming up with today's catchiest, most unforgettable drug names.

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America’s 250th birthday calls for a history as sprawling and contradictory as the country itself.

A History of the United States in 100 Objects — hosted by Roman Mars and produced by BBC Studios and 99% Invisible — tells that history one thing at a time. A gold coin from an 1857 shipwreck that triggered a financial panic. An antebellum schoolbook that became an instrument of Black liberation. A ceramic dalmatian from the set of Wheel of Fortune. Or a tiny screw that shows how the US created a hidden industrial empire.

Each week, an object opens the door into an extraordinary, often shocking story — about who we’ve been, what we’ve built, and what we’ve allowed ourselves to forget. Some of these objects are well-known. Many are not. But all of them carry the story of how we got to this moment. This is not one narrative. It’s a hundred of them — forming a kaleidoscope that reveals a country stranger and more fascinating than any single telling could capture.

Launching May 19, 2026, wherever you listen to 99% Invisible.

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Why is it suddenly so hard to fix the stuff we depend on most?

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