Biology information, textbooks, articles, lesson plans, and fun experiments.
Full text of the newspaper 1849 to the present.
Generates MLA, APA, or Chicago-formatted bibliographic reference and parenthetical citation.
Explore more than 300 full-text reference books with one search. Tutorial
Discussion and analysis of each significant war and conflict worldwide.
Biographical information on people from around the world and throughout history. Includes all entries from Contemporary Authors.
History, literature, science, and social studies articles aimed at middle and high school students.
From the US Geological Survey.
Full-text articles, biographies of historical figures, photos, and documents. Tutorial.