A biography of the soldier and explorer whose fearless treks into the American West opened a gateway for pioneers and settlers who would someday flock to that region.

Profiles the life of the sixteenth-century astronomer who revolutionized science with his theory the Earth revolves around the Sun.

Discusses the creation of the Department of Homeland Security in the United States in response to the terrorist attacks of September 11, 2001, explains the role of different agencies in the department, introduces some of the department's leaders, and looks at criticism of the department's activities.

Examines the great crash of the New York Stock Exchange of 1929 that heralded the beginning of the Great Depression, as well as the events that led up to it.

This is a biography of the tenth president of the United States who signed a resolution to annex Texas to the United States.

This is a biography of the twentieth president of the United States who was shot in 1881 and who had spent just fewer than two hundred days in office.

The story of a young girl, bought as a slave by a Boston family, who learned to write and later became a poet.

This book describes the Korean War (1950-1953), from the fighting between U.N. soldiers and North Koreans to a cease-fire agreement in 1953.