Provides information about ancient China, discussing structures, significant individuals, schools of thought, everyday life, and other related topics.

Provides information about the Aztec empire, discussing Tenochtitlán, daily life, ruins, and other related topics.

Discover the brief, brutal period of U.S. history known as the gold rush. Characterized by hope, greed, enterprise and thug rule, the gold rush transformed life in America--and began in January, 1848, with James Marshall's accidental discovery of gold in California.

Recounts the journey into the western United States conducted by explorers Lewis and Clark, outlining their routes, personal experiences, and encounters with the Native Americans.

Provides information about Mesopotamia, discussing the importance of two rivers to the civilization, city-states, empires, ziggurats, reading, writing, and other related topics.

Ages 8-12.

Describes the development of a railway system uniting the United States, from its design and planning, through the problems that plagued its construction, to its completion in 1869 and its subsequent effect on the nation.

An exploration of the Iroquois Indians, discussing the nation's housing, relationship with settlers, culture, and more.

Explores oceans, discusses how they affect the climate, and describes the variety of life forms found there.