In addition to being part of her husband's historic presidency, Michelle Obama built her own legacy tackling gun violence and fighting childhood obesity.

Rarely seen personal letters, photographs and intimate audio recordings reveal how Jackie Kennedy took control of JFK's legacy following his assassination.

From Ronald Reagan's first presidential campaign to the end of the Cold War, Nancy Reagan was pulling the strings and calling the shots behind the scenes.

Eleanor Roosevelt was a leader for civil rights and at the forefront of efforts to help Americans suffering during the Great Depression.

Lady Bird Johnson became a master mediator who helped soothe discord while boosting Lyndon B. Johnson's reputation following JFK's assassination.

Hillary Rodham Clinton forever changed the role of first lady before forging her own political identity in the years that followed.