Stuff You Should Know

The Nile River has been flowing south to north for about 30 million years, and the human race's cradle may have been along the Blue Nile stemming from Ethiopia. Find out some amazing facts about what may be the world's most important river. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

In the 19th century, typhoid was considered a disease of the lower classes. When an outbreak occurred in wealthy Oyster Bay, New York, a mystery was afoot. Tune in to learn how this event began an ongoing debate over public safety versus civil rights. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Few riots can be attributed to passing fashions, but zoot suits are top among them. After originating among the Harlem Renaissance crowd, the zoot suit came to symbolize political defiance. Find out why it's still illegal to wear a zoot suit in L.A. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Since its inception, the Peace Corps has sent 200,000 members to 193 countries to deliver aid and good will through know-how rather than direct funding. Learn about the successes, criticisms and dangers of the Peace Corps in this gung-ho episode of SYSK. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

When the Japanese invaded Southeast Asia in World War II, they cut off America's rubber supply. Luckily, American can-do created a synthetic rubber and saved the War. Learn about the inventor, fluid chemistry and more in this episode of SYSK. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Thought Chuck and Josh had already covered every law enforcement agency? Think again. The Marshals Service is the oldest law enforcement branch in the land, dating back to 1789. Listen up for how to get a free ride courtesy the Marshals in this episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Houdini suggested that sword swallowing was merely a trick. But there's no sleight of hand or throat to this ancient practice. Practitioners really do swallow swords, car axles and more. Learn more about sword swallowers in this gag-reflexive episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

After 800 years of creating coats and crests, some meaning has been lost to history, but much has been retained and is still in use. Find out what a mullet on field argent with stags rampant means in this Olde English episode of Stuff You Should Know. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Over the course of our lives, 80 percent of us will experience acne. Ultimately, acne comes down to one thing, a blockage in the sebaceous gland. Learn what makes a blackhead black, and everything else about zits, in this pus-filled episode of SYSK. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Explore the mysteries of the moon, including the theories surrounding its formation and how it cools. Discover the science behind moon phases like waxing and waning, plus what causes our oceans' tides. Find out about lunar ice and its potential for future moon bases. Learn about the politics influencing space exploration and international lunar ambitions. Plus, hear about fascinating lunar missions and how eclipses work. This journey through our celestial neighbor is a captivating blend of science and intrigue!