Wikipedia is an online encyclopeida that offers unmatched editorial on the widest range of subjects.
At the time of writing this user-generated online encyclopedia has 16 million articles, providing a superb primer on almost any subject. Most pages can be edited by anyone, which gives Wikipedia unmatched editorial resources, but makes it vulnerable to vandalism.
Research suggests Wikipedia has a similar rate of serious errors to the Encyclopædia Britannica, but its errors are often more embarrassing. Check the citations for any facts you need to rely on.
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