Collier's Encyclopedia

Discontinued US-based general encyclopedia

Collier's Encyclopedia is a discontinued general encyclopedia first published in 1949 by P. F. Collier and Son in the United States. With Encyclopedia Americana and Encyclopædia Britannica, Collier's Encyclopedia became one of the three major English-language general encyclopedias. The three were sometimes collectively called "the ABCs". In 1998, Microsoft acquired the right to use Collier's Encyclopedia content from Atlas Editions, which had by then absorbed Collier Newfield. Microsoft incorporated Collier's Encyclopedia's content into its Encarta digital multimedia encyclopedia, which it marketed until 2009.

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