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Explore the updated online encyclopedia from Encyclopaedia Britannica with hundreds of thousands of articles, biographies, videos, images, and web sites.

Dictionary.com - the largest and most trusted free online dictionary. Instantly look up accurate and extensive definitions and word meanings, and hear audio pronunciations.

From Columbus to Chavez, the History of Latin America is long and fascinating. Here you

The Gilder Lehrman Institute offers seminars and lesson plans for teachers as well as fellowships and forums for U.S. History students and scholars.

Definition of word from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games.

Infoplease.com, a free, authoritative, and respected reference for Internet users, provides a comprehensive encyclopedia, almanac, atlas, dictionary, and thesaurus. Infoplease.com contains facts on all subjects including sports, entertainment, techno...

Encyclopedia.com – Online dictionary and encyclopedia with pictures, facts, and videos. Get information and homework help with millions of articles in our FREE, online library.

TFD Encyclopedia includes Computer Desktop Encyclopedia, Columbia Encyclopedia and many other great sources.

The goal of this free online learning center is to help high school students prepare for comprehensive exams in English, math, global history, U.S. history, earth science, biology, chemistry, and physics.

The Historical Text Archive publishes high quality articles, books, essays, documents, historical photos, and links, screened for content, for a broad range of historical subjects. The HTA is a collection of primary and secondary materials and links ...

Get Spanish English translations with with our bidirectional online English to Spanish to English dictionary and translation engine.