In this episode of pplpod, we dive into the controversial and groundbreaking life of Charles Knowlton, a 19th-century American physician, atheist, and early birth control advocate. From supplementing his medical education by digging up and dissecting corpses—a crime that landed him in jail—to developing psychological theories of “early behaviorism” in his book Elements of Modern Materialism, Knowlton was a prominent freethinker who constantly challenged the norms of his era.

We explore the massive scandal surrounding his most famous work, The Fruits of Philosophy. Originally shared privately with his patients, this pioneering medical guide summarized the physiology of conception and detailed early methods of contraception, treating infertility, and impotence. Discover how this controversial birth control manual led to Knowlton being targeted by local clergy, prosecuted, and ultimately imprisoned at “hard labor”.

Finally, we discuss his later success as a leading country doctor in western Massachusetts, his advocacy for women’s equal rights in freethinking societies, and how the infamous Bradlaugh-Besant trial in London turned his book into an international bestseller 27 years after his death.

Tune in to learn about this fascinating chapter of medical history, the early history of contraception, and the resilient doctor who fought for mental liberty!