America has been the home of many inventors and innovators, including Thomas Edison, Henry Ford, Nikola Tesla, and Walter Hunt. Walter Hunt? Today we tell the story of a man who tinkered and tinkered and tinkered and came up with such all-American inventions as the safety pin, the forerunner of the bicycle, and the first prototype of the sewing machine, yet was never recognized for his work. You can subscribe to the Untold History on Apple Podcasts, Stitcher, Feedburner, or on your favorite podcast app. We're also on Twitter @UHPodcast. Thanks for listening and sharing our stories with your friends!