Discusses the early nineteenth-century journey of Meriwether Lewis and William Clark through the Louisiana Purchase and beyond, for the purpose of exploring the land and establishing friendly relations with native peoples.

A description of the mountain men, nineteenth-century explorers and fur traders who helped open up the West to United States settlement.

Discusses the history and exploits of the U.S.S. Constitution, or "Old Ironsides," a frigate built in the late eighteenth century to fight the pirates of the Barbary States that still floats today.

Discusses the race between the United States and the Soviet Union to be the first nation to send a man into space and to land on the moon, including a glimpse of historical, technological, and human factors involved.

A description of the history and characteristics of the national monument known as the Tomb of the Unknown Soldier at Arlington National Cemetary, Arlington, Virginia, which was established after World War I to honor an unidentified soldier from each war.

Discusses the history and present role of Wall Street, the site of the New York Stock Exchange as well as powerful brokerage houses and investment firms.

Discusses the history of the United States Naval Academy at Annapolis, Maryland, its distinguished graduates, and student life.

Explains the history of segregation in the United States and cases that tested the law allowing "separate but equal" treatment, including the five cases that came together as Brown v. Board of Education.

Discusses author and marine biologist Rachel Carson's efforts to protect the environment, from her childhood nature outings in Pennsylvania through the impact of her 1962 book, "Silent Spring."

Details events that led to the Declaration of Independence and Revolutionary War, looks at major battles including the Battle of Yorktown, and reviews the formation of a United States government.