Want to add to our list of 100 objects? We're looking for objects that can help us explore the history of labor struggles, The Great Depression, immigration, and American science. Have the perfect object? Send us an email at 100objects@99pi.org

A closer look at the messy, beautiful bricks hiding across Chicago 🧱 Listen to 99% Invisible wherever you get your podcasts 👉 https://bit.ly/4jBvagA

@jamieloftus.bsky.social has always known about Alcoholics Anonymous. As a kid, she loved the album where her dad kept all his AA chips. Imbued in those little chips is a hidden history of America’s relationship to gender, religion, and morality. Listen now 👉 https://bit.ly/4fNZhPW

We need you! We've got Signal Awards finalists in 5 different categories and now it's up to listeners like you to vote for your favorites 🏆 Visit the links below to vote for 99PI, Hidden Levels, Service Request, and 100 Objects in this year's signal awards 👇

How a Swiss mountain call crossed the Atlantic and helped define the sound of country music. Listen to a new episode of 99% Invisible wherever you get your podcasts 👉 https://bit.ly/4rDuCIU

The Western Electric 500 Series Telephone used to be everywhere. But why was this one phone so much better than everything that came before… or, in some ways, since? Listen to A History of the United States in 100 Objects on the 99% Invisible feed 👉 https://bit.ly/4fNZhPW

Turn your next walk into a walking tour. 99% Invisible is featured in Hidden Histories, a new series of podcast guides from Apple Podcasts and Apple Maps across 5 iconic cities https://apple.co/podcasts-on-maps

How a movie prop became one of Philadelphia’s most beloved monuments, and sparked a decades-long fight over where it belonged. Listen to a new episode of 99% Invisible wherever you get your podcasts 👉 https://bit.ly/4iNOZkB

Somewhere between 85 to 95 percent of Black women in the United States have used a chemical hair relaxer at least once in their lifetime. And now research is revealing a physical cost... Listen to A History of the United States in 100 Objects on the 99% Invisible feed 👉 https://bit.ly/4fNZhPW

A legendary typeface, a spectacular friendship breakup, and one extremely committed act of revenge. Listent o 99% Invisible wherever you get your podcasts 👉 https://bit.ly/4rb1f0u

How should the military outfit its soldiers to make them as safe and effective as possible? Listen to A History of the United States in 100 Objects on the 99% Invisible feed 👉 https://bit.ly/4fNZhPW

Every product has to be tested somehow, and sometimes that means finding increasingly creative ways to break it. Listen to a new episode of 99% Invisible wherever you get your podcasts 👉 https://bit.ly/46LmxZ4

This week, two stories about the strange power of the 1-800 number ☎️ Listen to a new episode of 99% Invisible wherever you get your podcasts 👉 https://bit.ly/4yduYbp

In 1888, Willard Bundy created the first employee "time clock" — a souped-up grandfather clock that could, for the first time, produce a record of when workers arrived and left. Listen to A History of the United States in 100 Objects wherever you get your podcasts 👉 https://bit.ly/4fNZhPW

Spolia, from a Liverpool neighborhood to ancient Rome. Listen to a new episode of 99% Invisible wherever you get your podcasts 👉 https://bit.ly/4gsaEf7

Why are so many NBA players wearing a compression sleeve on their arm? Listen to A History of the United States in 100 Objects wherever you get your podcasts 👉 https://bit.ly/4fNZhPW

Friend of the show Gillian Jacobs joins us for the tale of two rival paleontologists who turn a hunt for dinosaur bones into an all-out scientific war. Listen to a new episode of 99% Invisible wherever you get your podcasts 👉 https://bit.ly/4cPNePN

The story of how a politician who owed so much to a corrupt government system became the one to dismantle it, thanks to one woman: Julia Isabella Sand. Listen to A History of the United States in 100 Objects on the 99% Invisible feed 👉 https://link.podtrac.com/100_objects

Dinosaurs. Gillian Jacobs. What more could you want? Get early access to next week's episode when you subscribe to 99% Invisible on SiriusXM Podcasts+ 🎧

A devastating fire put one of Hong Kong's oldest building traditions on trial, but the real story runs much deeper. Listen to a new episode of 99% Invisible wherever you get your podcasts 👉 https://bit.ly/4zdiwtC

In 1821, two Rhode Island brothers went looking for buyers for their woolen fabric, and stumbled into a lucrative, captive market: Southern slave plantations. Listen to A History of the United States in 100 Objects on the 99% Invisible feed 👉 https://bit.ly/4fNZhPW

Behind every perfect nature-inspired design is a far more complicated story. Listen to a new episode of 99% Invisible wherever you get your podcasts 👉 https://bit.ly/4wKHcIq

The Brannock Device transformed the way we measure feet forever, and more than a century after its invention… it has barely changed. Listen to A History of the United States in 100 Objects on the 99% Invisible feed 👉 https://bit.ly/4fNZhPW

A simple cardboard box helped transform Finland into one of the best places in the world to raise a child. Listen to 99% Invisible wherever you get your podcasts 👉 https://bit.ly/4vTqPrE

In the early 1970s, Bruce Lee made nunchaku (nunchucks) cool — But the nunchucks craze coincided with something much bigger: the birth of a radical new Asian American identity. Listen to A History of the United States in 100 Objects on the 99% Invisible feed 👉 https://bit.ly/4fNZhPW

Neil MacGregor reflects on creating the landmark series that changed how people think about history. Then, revisit the Rosetta Stone, the artifact that unlocked ancient Egypt. Listen to 99% Invisible wherever you get your podcasts 👉 https://99percentinvisible.org

In 1982, a twelve-year-old paperboy, Johnny Gosch, vanished from a quiet Iowa street and sparked an unlikely campaign... Listen to A History of the United States in 100 Objects on the 99% Invisible feed, wherever you get your podcasts 👉 https://link.podtrac.com/100_objects

A Louisiana man born into slavery designs an airship with hopes to take flight. Those plans are interrupted, but maybe not forever. Listen to 99% Invisible wherever you get your podcasts 👉

In 1902, an American classic was born: the teddy bear. Named after President Theodore Roosevelt, it sparked an idea…maybe every president should have their own stuffed animal. Listen to A History of the United States in 100 Objects on the 99% Invisible feed 👉 https://bit.ly/4fNZhPW

We keep score of everything these days. But what happens when the numbers start changing what we actually care about? Listen to a new episode of 99% Invisible wherever you get your podcasts 👉 https://bit.ly/4gndow5