Encyclopedia Britannica: Fact Checked Reference Articles and Learning
Encyclopedia Britannica is a trusted online encyclopedia with a large collection of fact checked reference articles for general readers, students, teach...
encyclopedia websites
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Wikimedia Germany: Supporting Wikipedia and Free Knowledge
Wikimedia Germany is the nonprofit association behind Wikipedia in Germany. The site explains how the organization supports volunteers, develops and mai...
Wikipedia Free Collaborative Encyclopedia
Wikipedia is a free online encyclopedia built and maintained by volunteers worldwide and hosted by the Wikimedia Foundation. It offers millions of refer...
Wikipedia Free Online Encyclopedia
Wikipedia is a free online encyclopedia created and maintained by volunteers around the world and published by the Wikimedia Foundation. It offers a lar...