The Contentious Invention of the Sewing Machi...

IUDs are under the umbrella of long-acting, reversible contraceptives, and they’re the oldest one of these in use today. Research: Baldauf, P et al. “A Report on the Hysteroscopic Removal of a Gräfenberg Ring After Almost Fifty Years in Utero.” Geburtshilfe und Frauenheilkunde vo ...  Show more

Elizabeth Peratrovich is most well-known for her work to pass Alaska’s Anti-Discrimination Act of 1945. But her story also has more to it than that act. Research: Anchorage Museum. “Elizabeth Peratrovich.” https://www.anchoragemuseum.org/exhibits/extra-tough-women-of-the-north/wo ...  Show more

Until recently, invention and patenting have been guy things, though not for women's lack of innovation. Cristen and Caroline discover the American history of women inventors and why the patent gender gap has been so challenging to close.

Chopsticks may seem like a basic invention, but this invention has a fascinating history... Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information. 

The zipper may be the most unsung invention we humans have ever come up with. Prior to zippers, everyone walked around like idiots with nothing but buttons to hold their clothes together. The zipper changed all that. The zipper changed everything. Learn more about your ad-choices ...  Show more

Today's tour features some amazing inventions that might have been a heavy lift, but we've been writing about them ever since.Join our Patreon for ad-free episodes!: https://www.patreon.com/grimandmildSee omnystudio.com/listener for privacy information.