Sidedoor

Sidedoor returns for its tenth season on Wednesday, September 13th!

In 1860 the fastest way to get a message to a family member, partner, or colleague wasn’t by text but by hoof…specifically, a pony’s. In just ten short days the Pony Express delivered mail between St. Louis and Sacramento. To find out what it was like to travel this legendary trail, there’s only one way: get on a horse and follow all 2,000 miles of it. That’s what writer Will Grant did, retracing...

When a  200-year-old legal document  anonymously arrived at his office, Smithsonian Libraries and Archives conservator William Bennett assumed it would be full of boring legal jargon. Instead, he found a juicy tale of family betrayal that would forever change what we thought we knew about the founding of the Smithsonian. In honor of the Smithsonian’s 177th birthday, we’re sharing one of our favori...

When you imagine the sound of a dinosaur, you probably think of a scene from the Jurassic Park movies. How do sound designers make these extinct creatures sound so believably alive? And what does modern paleontology tell us about what dinosaurs REALLY sounded like? This guest episode of Twenty Thousand Hertz features Jurassic World sound designer Al Nelson and paleontologist Julia Clarke.   We’ll...

A Smithsonian researcher has made a discovery we couldn't wait to sink our teeth into — what might be the earliest evidence of our human ancestors eating each other. This conversation is a special update from our past episode 'Did Meat Make Us Human?' Bon appétit! 

Before the invention of photography, only the rich could afford to have portraits of themselves. But in the early 1800s, a device called the physiognotrace democratized portraiture, making it possible or everyday people to have their images captured in silhouettes. A man named William Bache traveled the United States creating hundreds of silhouette portraits with the aid of the physiognotrace, lea...

America has a long history of clustering heavy industry and toxic facilities in communities where people of color live. But in the 1980s, a series of events sparked a movement to fight back against these environmental injustices. We trace the history of the environmental justice movement from the farmlands of North Carolina to a watershed moment in the nation's capital.    Guests:    Vernice Mille...

In 1948, Moses Asch set out with an ambitious project: to document the world’s sounds! 75 years later, that project has grown into one of the world’s most eclectic, iconic and LARGEST repositories of recorded sound… from American folk music, to sounds of everyday life, and even a serenade for turkeys. Folkways Recordings —as it's now known— lives on within the Smithsonian, connecting the past, pre...

Women have long fueled America's greatest scientific achievements. But when you go searching for information about these women scientists, you'll likely come up short. Only 19% of articles on Wikipedia are about women. In the field of science, this difference is even more pronounced. But now, a team at the Smithsonian is using artificial intelligence and good old fashioned research skills to scour...

Nowhere in the world are lawns as revered as they are in the United States. The picture-perfect patch of grass is so deeply rooted in the American psyche it feels more like a default setting than a choice. Americans spend countless hours every year seeding, watering, mowing, and fertilizing patches of grass that don't make much sense, economically or ecologically. But why? In this episode, we dig...

As a kid, Bill Nye spent whole days wandering the halls of Smithsonian museums. Now the Science Guy is back… to find his own blue lab coat and periodic table bowtie on display at the National Museum of American History. We sit down with Bill Nye to get schooled on science education, comedy, and the 1990s hit TV show that turned him into an entire generation’s favorite science teacher. Guests: Bill...

Until the 1970s, women were barred from competing in U.S. marathons because of the belief that the "violent movements" would wreak havoc on their reproductive system, "thus defeating a woman’s true purpose in life, i.e., the bringing forth of strong children." Through a series of steps, stumbles —and one epic tackle— running pioneers like Roberta "Bobbi" Gibb and Kathrine Switzer blazed the trail...

We think of paintings as art, but can they also be a source of data? 300 years ago, a young prince inherited the throne in Udaipur, India, and brought with him some newfangled ideas about art. His court artists created massive paintings that flew in the face of convention, documenting real life events, times, places and even emotions —especially during the annual monsoon season. These paintings ar...

Most people in North America can't see the Milky Way. The reason? We're ensconced in a luminous fog of artificial lighting 24/7. The evolution of lighting technology over the last century has made it possible to live, work, and play at any hour - day or night. But light pollution affects all life on earth, from humans to plants and insects. So, how did we find ourselves surrounded by a glowing shr...

When Sidedoor listener Cliff Hall bought a used violin, he found a tattered note tucked alongside the century-old instrument. Obsessed with this cryptic piece of paper, Cliff’s quest to find the owner of the violin unlocked a tale of subterfuge, scandal, and the Smithsonian’s first donation of rare instruments.   Guests: Deborah Shapiro , reference archivist at the Smithsonian Institution Archives...

Sidedoor returns for its ninth season on Wednesday, March 1st!

They bring out the voyeur in us. And the Smithsonian’s Archives of American Art is full of them. In three short letters, we offer a glimpse of tender moments in the complex lives of others. Guests: Josh T. Franco , Head of Collecting at the Archives of American Art. Liza Kirwin , Interim Director of the Archives of American Art. Jenny Williams , Associate Director for Advancement at the Archives o...

In 1983, the Cabbage Patch Kids were released, causing widespread pandemonium in toy stores and in the media. How did a children's toy inspire such bad adult behavior? Slate’s Decoder Ring podcast explores the strange world of the Cabbage Patch Kids to figure out why they hit it so big. The answer involves butt tattoos, slightly grotesque faces, industrial innovations, an origin story in a cabbage...

This MLK Day we're digging into the story behind Dr. King's famous "I Have a Dream" speech —from its first draft to a rhyming poem and, finally, to the speech we all know today. This episode was previously released in February of 2022. 

Public monuments to honor Black Americans in the 1930s: that was the vision of Augusta Savage, a Harlem Renaissance sculptor who has been called one of the most influential artists of the 21st century. But the monuments she left behind might not be what you'd expect. Guests: Karen Lemmey , Lucy S. Rhame Curator of Sculpture at the Smithsonian American Art Museum  Grace Yasumura , assistant curator...

What is it about a mistletoe that says “smooch?” And what the heck is figgy pudding anyway? The holidays are here again, and with them come songs, foods, and rituals so familiar we may not think to ask where they come from...until now! In this holiday special, we track down the origins of some puzzling Christmastime traditions, jingling all the way from Norse mythology to Victorian home cooking, t...

Known for her smashing parties, lighter-than-air souffles and comedic wit, Lucy Hicks Anderson never let anyone tell her how to live her life – not even the courts. When her gender was put on trial in the 1940s, the publicity around her case made her one the first documented Black transgender figures in American history.  Guests:   Ashleigh Coren, Acting Head of Education for the Smithsonian Ameri...

If you’ve heard the phrase, “full blooded,” you’re already familiar with the concept of blood quantum. But Native Americans are the only peoples in the United States whose identity is defined by it. Through the  photography of Tailyr Irvine, displayed at the National Museum of the American Indian , we take a look at the colonial origin story of blood quantum: where it came from, why it endures, an...

It took pride, deceit, and a giant catapult to set off the feud between the Wright brothers and the Smithsonian. On December 17, 1903, the Wrights made history when they flew across a blustery beach in Kitty Hawk, North Carolina. The airplane they flew that day is now a centerpiece of the National Air and Space Museum’s collection. This is the story of how it nearly wasn’t. Guests: Peter Jakab , s...

"I wake up every morning in a house built by slaves." After Michelle Obama said those words at the 2016 Democratic National Convention, thousands of Americans flooded the White House Historical Association with calls. Who were the enslaved African Americans who built the White House? This led historians from the Smithsonian's National Museum of African American History and Culture and the White Ho...