U-X-L reference library

Presents study tools on the Gilded Age and Progressive Era including overviews of such aspects as industrialization, immigration, westward expansion, and invention; twenty-five biographical profiles; eighteen primary sources; a time line; and a glossary.

Presents overviews of fifteen aspects of the Cold War, including the division of Berlin, the Cuban Missile Crisis, espionage, and the arms race in the 1980s, and includes a time line, a glossary, a "people to know" list, and research and activity ideas.

Presents seventeen primary documents, such as journal entries and newspaper articles, from the westward expansion period of the U.S., 1763-1890; also contains a time line and a glossary.