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Medical Discoveries: General Information and Biographies, A-An, Apg-Ban, Bar-Cod, Com-En, Enz-Ho, Hu-Mor, Ni-Ra, Ra-Thy, and To-Z

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

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.

Who saved the most lives in history. We profile lifesaving scientists and their discoveries.

MicrobeWorld explores the world of microbes with vivid images and descriptions. Learn about microbiology, what microbiologists do, how they do it, and current topics in the news.

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...

The International Baccalaureate (IB) is a recognized leader in the field of international education, encouraging students to be active learners, well-rounded individuals and engaged world citizens. The organization offers to schools three programmes...

Facebook is a social utility that connects people with friends and others who work, study and live around them. People use Facebook to keep up with friends, upload an unlimited number of photos, post links and videos, and learn more about the people ...