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Everything in {{SITENAME}} comes from reliable sources like books and newspapers. When readers see references to those sources in an article, they can feel confident in what they're learning.

Use books, websites, and news sources to validate that Wikipedia is accurate, and add those to articles so that readers can feel confident that what they're reading is true.

Improves your content by adding sources of information. You can cite from books, newspapers and websites.

Find references (sources for existing articles)

See what your edits will look like to readers by previewing them in realtime.

Readers access references to check the facts. Review the format of the references and add relevant references in your language.

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This page needs additional references or sources for verification.

Adding reliable sources and updating articles that are out of date

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Click here to browse a wide collection of free reliable sources.

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Primary sources

Map sources

Book sources

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An article about a living person that has no sources

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This page relies too heavily on primary sources, and needs secondary sources.

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Add sources to verify Wikipedia articles