In April of 1775, just weeks before the American Revolution begins, a group of pioneers launch their own revolution, defying a King to establish a permanent settlement on the frontier. Before them lies a territory of 2.5 million square miles of vast, raw, untamed land stretching from the Appalachian Mountains to the Pacific Ocean that will one day forge a new nation. History's four-part, eight-hour docuseries The Men Who Built America: Frontiersmen, from executive producers Leonardo DiCaprio and Jennifer Davisson of Appian Way and Stephen David of Stephen David Entertainment, premieres Wednesday, March 7 at 9PM ET/PT and tells the stories of the adventurous trailblazers, from Davy Crockett to Lewis and Clark, who set forth across the land to transform us from colonists to revolutionaries to Americans.

The Men Who Built America: Frontiersmen spans a formative period of history featuring the first 75 volatile years of the United States, from the Revolution through the California Gold Rush, where Daniel Boone, Meriwether Lewis and William Clark, John Frémont, Davy Crockett and Andrew Jackson set forth across uncharted land with determination and self-reliance.

Featuring dramatized portrayals of frontier icons interlaced with exclusive interviews with experts and survivalists, episode one, airing on Wednesday, March 7 at 9pm ET/PT, explores the beginning of The Revolution, where the outbreak of war spreads beyond the colonies into remote territory forcing frontiersmen such as Daniel Boone to fight for his life and the future of his country.

Episode two, airing on Wednesday, March 14 at 9pm ET/PT, follows Shawnee warrior, Tecumseh, as he unites the Native American tribes to resist expansion, while Lewis and Clark make their legendary expedition to the Pacific, and a new war for America begins.

In Episode three, airing on Wednesday, March 21 at 9pm ET/PT, America turns to General Andrew Jackson to defend the frontier but his methods give rise to a fierce rivalry with frontier icon Davy Crockett.

Lastly, episode four, airing on Wednesday, March 28 at 9pm ET/PT, delves into Davy Crockett's stand at The Alamo, while John Frémont and Kit Carson set out on a secret mission that ignites a war for California and the Pacific.

The Men Who Built America: Frontiersmen is produced for History by Appian Way Productions and Stephen David Entertainment. Jennifer Davisson and Leonardo DiCaprio serve as executive producers for Appian Way Productions, the project was shepherded in by Appian Way's Phillip Watson and Michael Hampton. Stephen David serves as executive producer for Stephen David Entertainment. Kristen Burns and Mary Donahue serve as executive producers for History. A+E Networks holds worldwide distribution rights for "Frontiersmen."

History, now reaching more than 96 million homes, is the leading destination for award-winning 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 signature series including The Curse of Oak Island, Forged in Fire, Alone, Pawn Stars, American Pickers, as well as hit drama series such as Vikings and Six. The History website is located at History.com. Follow us on Twitter at twitter.com/history and Facebook at facebook.com/history.