Background sources such as, but not limited to, dictionaries and encyclopedias provide context for your topic or even help you choose one. Researchers use them when they need:
This link opens in a new window
Encyclopedia, dictionary and biographical entries from hundreds of sources for most subject areas. It includes images, diagrams, maps and photos, and audio pronunciation files and sound clips. Coverage 2000 – present.
This link opens in a new windowEncyclopedia entries, primary documents, multi-media and maps for 26 different cultures from ancient Greeks and Romans to Chaucer's England and Colonial America. Coverage: Ancient world – present.
This link opens in a new windowEncyclopedia and dictionary entries for most subject areas. Dates covered: latest edition of each title.
This link opens in a new windowCollection of encyclopedia articles, biographies, facts & figures, media. photos & illustrations, political cartoons, posters on popular culture. Also includes primary sources including documents, speeches, letters, political, government & court documents and cultural artifacts. Coverage: 1900 – present.
This link opens in a new windowEncyclopedia entries and essays for geographic subjects. Coverage: varies.