Hernando De Soto began his career in exploration at age 14 when he traveled to the West Indies. Find out how he became known as the first European to discover the Mississippi River in this video. Check out exclusive HISTORY content: Website - http://www.history.com?cmpid=Social_YouTube_HistHome Twitter - https://twitter.com/history Facebook - https://www.facebook.com/History Bio Shorts Season 1 Episode 1 Biography features in-depth profiles of the exceptional people whose lives and times stir our imagination. An Emmy award-winning documentary series, Biography thrives on rich details, fascinating portraits and historical accuracy, seasoned with insider insights and observations. HISTORY®, now reaching more than 98 million homes, is the leading destination for award-winning original series and specials that connect viewers with history in an informative, immersive, and entertaining manner across all platforms. The network’s all-original programming slate features a roster of hit series, epic miniseries, and scripted event programming. Visit us at HISTORY.com for more info.