In the 1800s, the American diet was mostly made up of meats, potatoes, cheese, and perhaps the occasional green bean. Fruits and other veggies? Not so much. But that all changed thanks to a group of 19th century food spies – globe-trotting scientists and explorers who sought exotic crops to enhance America’s diet and help grow the economy. A pioneer among them was David Fairchild, who nabbed avocados from Chile, kale from Croatia, mangoes from India, and much more. In this episode, we learn about Fairchild's remarkable adventures and take a surprise trip to the Smithsonian archives to uncover a rare piece of food spy history.

In 1918, a flu pandemic killed more than 50 million people worldwide. Forty years later, it nearly happened again. This week on Sidedoor, we go back to a time when the viruses were winning, and we remember one man, Dr. Maurice Hilleman, whose vaccine virtuosity helped turn the tide in the war against infectious diseases. Special thanks to our sponsor, Empty Frames. Search and subscribe to Empty Frames today on Apple Podcasts or your favorite listening destination.

Today, the US population is about 1% Muslim, but in the late 1700s that number was likely closer to 5%. Who were these early Muslim-Americans, where did they go, and why didn’t we all learn about them in school? In this episode, we search for American history's missing Muslims, and explore their experience though the words of Omar ibn Said, an enslaved Muslim man in North Carolina whose one-of-a-kind autobiography still resonates today.

Join Sidedoor in welcoming AirSpace, a new gravity-defying podcast from the Smithsonian’s National Air and Space Museum. Hosts Emily Martin and Matt Schindell join Tony to share a few upcoming stories, including what’s on the menu in space, how Earth’s oceans teach us about exploring the cosmos, and what it takes to be an astronaut. We’ll also give you a peek into AirSpace’s maiden voyage, where the team looks at what happens when a bunch of scientists attempt to live like Martians. If you’ve ever thought changing time zones was hard, try living on “Mars Time.”  A special thank you to our sponsor, Hanover Press.

While we’re hard at work on some exciting new things, we wanted to start the new year off with one of our favorites from 2017: If These Bones Could Talk. Explorer, scholar and 19th Century Smithsonian darling Robert Kennicott seemed destined to lead a full and adventurous life. Then, at the age of 30, on an expedition to Russian Alaska in 1866, Kennicott was mysteriously discovered dead by a riverside. Rumors of all colors circulated about the cause of his death, although, it wasn’t until 135 years later, in 2001, that two Smithsonian forensic scientists cracked the case.

120 years ago, Owney was a global celebrity. He was also a dog. And no, he didn’t juggle plates or dance on two legs, Owney was famous for simply riding trains with the US mail. So, climb aboard the Sidedoor Express and join us as we revisit different chapters of Owney’s story – his rise to fame, his disastrous fall, and his remarkable return to the spotlight at the Smithsonian’s National Postal Museum. It’ll be a doggone good time.

Even if you’ve never heard his name, you’ve probably heard his sound. J Dilla was a prolific hip-hop artist who collaborated with many hip-hop greats – from Questlove to Erykah Badu to Eminem. In this episode, we’re telling the story of J Dilla’s life and legacy through those that knew him best – his mother (aka Ma Dukes), James Poyser, and Frank Nitt – and some surprising objects on display at the Smithsonian’s National Museum of African American History and Culture.

Does your ham sandwich have something to say? Quite possibly. Food can be a powerful storytelling tool. Many chefs, like authors, carefully craft meals or menus to transform a dining experience into a cultural, historical, or educational adventure. This week on Sidedoor, chef Jerome Grant from the Smithsonian's National Museum of African American History and Culture, and Maricel Presilla, who was the first female Latin American guest chef at the White House, discuss the story-rich menus that put them in the spotlight. Recorded live at the National Museum of American History’s Food History Weekend.

A hippo, an orangutan, and a scientist walk into a milk bar... or so our story goes. In January 2017, a baby hippo was born at the Cincinnati Zoo six weeks premature and some 30 pounds underweight. Her name was Fiona, and getting her to put on pounds was a life or death matter. Unfortunately, nursing wasn't an option and the only hippo formula recipe on file was old and out of date. To devise a new one, team Fiona turned to the scientists at the world's largest exotic milk repository at the Smithsonian's National Zoo. But could they do it in time…and would Fiona drink it?

Heiress, divorcée … mother of forensic science? Frances Glessner Lee was not your average 19th century woman. Using the skills that high-society ladies were expected to have -- like sewing, crafting, and knitting -- Frances revolutionized the male-dominated world of crime scene investigation. Her most celebrated contribution: 19 intricate dioramas depicting violent murder scenes. In this episode of Sidedoor, we'll explore Frances's morbid obsession, and discover why the Smithsonian's Renwick Gallery has chosen to put them on display.