In November of 1915, a submarine was found at the bottom of The Chicago River. It had been there for at least ten years, was 40 feet long, and contained the remains of a man and his dog. To this day, no one knows who built it, where it came from, or who was inside. This is the first in a five part series looking into the mystery of The Foolkiller. With luck, we might even be able to solve it. But before we get into the meat of the question, we need to learn the context. We need to learn about the darkest day in Chicago history, the day of The Eastland Disaster. Get a free trial of The Great Courses Plus and three months of unlimited access for just $30 dollars by going to https://www.thegreatcoursesplus.com/theconstant (https://www.thegreatcoursesplus.com/theconstant) Get 10% off your first month of online counseling by visiting:http://betterhelp.com/theconstant (http://betterhelp.com/theconstant) and entering discount code "theconstant". Visit our Patreon here (https://patreon.com/theconstant). For more information and photos of The Foolkiller and The Eastland, go to www.constantpodcast.com (http://www.constantpodcast.com) Music by:Blue Dot Sessions (https://www.sessions.blue/)Lee Rosevere (https://leerosevere.bandcamp.com/)Kevin MacLeod (https://incompetech.com/) Learn more about your ad choices. Visit megaphone.fm/adchoices