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Encyclopaedia, reference work that contains information on all branches of knowledge or that treats a particular branch of knowledge in a comprehensive manner. For more than 2,000 years encyclopaedias have existed as summaries of extant scholarship in forms comprehensible to their readers.

Explore biographies; artists, painters, architects, sculptors, photographers, educators, actors, composers, directors, presidents, prime ministers, Nobel Prize winners, generals, writers, poets, playwrights, novelists, philosophers, theologians, explorers, inventors, physicists, chemists, athletes, engineers, computer scientists.

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Pursuing diversity, equity, and inclusion in the workplace and in our work. For more than 250 years, Britannica has kindled the spark of curiosity with stories of discoveries, people and events that changed the world. Wait till you see what we do in the next 250 years.

Unlimited, ad-free access to the full Britannica database of information. The premier destination for professionals, college students, and lifelong learners. All articles come with Listen to the Article audio feature. Thousands of expertly curated articles and scholarly resources.