Preserving the Legacy offers a comprehensive and compelling look at the founding and first two decades of The National WWII Museum, now one of the largest and most immersive military museums in the United States. Before its inception, friends and historians Gordon H. "Nick" Mueller and Stephen E. Ambrose recognized the need for an institution dedicated to preserving the oral histories of WWII veterans and the history of World War II more generally. Their efforts resulted in the opening of the D-Day Museum on June 6, 2000. With funding from the federal government, the state of Louisiana, and numerous individuals--including actor Tom Hanks and director Steven Spielberg--the Museum rapidly expanded. Following Ambrose's death in 2002, the U.S. Congress designated the institution as "America's National World War II Museum." Today it consists of seven separate pavilions that span the entirety of the war and boasts several multifaceted educational programs, many of which are held in the Museu