How did a shipwreck double the size of the US?

Originally, Spanish silver was meant to stabilize the Louisiana territory -- but the ship carrying the necessary funds sank in the Gulf of Mexico. Find out more about the El Cazador shipwreck in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.