Profiles the life of the fifteenth-century explorer who opened up the Americas to the Europeans.

Profiles the life and work of the Polish astronomer who believed that the planets revolved around the Sun and the Earth was not the center of the universe.

Profiles the life and career of the author of Common sense, his time in a French prison, his release, and his contributions to American history.

Discusses the life of the self-made millionaire who made his fortune in the steel industry and is remembered for his generous donations that built libraries, universities, and research facilities.