Madame Yale Made a Fortune as America’s 19th-...

Today, if you’re asked to think of a tractor, most of us probably imagine farm equipment. But in the late 18th century, a physician named Elisha Perkins made and sold a different kind of tractor – a device consisting of small metal rods that could cure what ails you simply throug ...  Show more

William Bailey called himself a doctor, but his career was as a shady businessman, not a medical professional. In the early 20th century, he launched a series of start-up companies, capitalizing on the new discoveries of radioactive elements, and sold patent medicine products wit ...  Show more

Forty years ago, cyanide-laced Tylenol capsules led to the deaths of seven people all around the Chicago area. America was gripped by paranoia and fear. Why was this happening? Who would be next? Police grasped for suspects who might be the so-called “Mad Poisoner.” We’re joined ...  Show more

Listeners, we’re popping back into your feed this week to share a special crossover episode from Serial Killers and Conspiracy Theories. Forty years ago, cyanide-laced Tylenol capsules led to the deaths of seven people all around the Chicago area. America was gripped by paranoia ...  Show more

This is the finale of our Serial Killers and Conspiracy Theories crossover: By 2011, the FBI was ready to reexamine the evidence. A theory emerged: What if the Mad Poisoner was actually the Unabomber? Ted Kaczynski had proven he was a revenge-seeking terrorist, and he had connect ...  Show more

Around 2013 heroin users in the US and other countries suddenly started dying from overdose in previously-unseen numbers. The culprit turned out to be the incredibly potent drug fentanyl and it soon created a massive new wave in the opioid epidemic.See omnystudio.com/listener for ...  Show more