Wikidata Free knowledge base Wikiversity Free learning resources Wikiquote Free quote compendium MediaWiki Free & open wiki software Wikisource Free content library Wikispecies Free species …

Cognition encompasses mental processes that acquire, store, retrieve, transform, or apply information. It is a pervasive part of mental life, helping individuals understand and interact with the world. …

A wiki is a website that anyone can participate in. From writing about your favorite topic, to adding a photo or fixing a typo, a wiki is a place where anyone can contribute and collaborate.

Avatar: TLA Season 2 Review: Netflix's Remake Still Hasn't Found Its Feet Despite adapting a compelling storyline, this slow-moving show remains a disappointment Search the world's largest fan …

Welcome! The Wikimedia movement is a global community of people, projects, and activities working together to create and share knowledge freely. Join us in making all knowledge available to …

May 23, 2026 · Wiki Loves Earth Upload your photographs of natural heritage for Wiki Loves Earth 2026. Learn more about the contest!

Jun 3, 2026 · Wikipedia uses collaborative software known as a wiki that facilitates the creation and development of articles. Although some highly publicized problems have called attention to Wikipedia …

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"A wiki invites all users—not just experts—to edit any page or to create new pages within the wiki website, using only a standard 'plain-vanilla' Web browser without any extra add-ons."

野牛镍币 是 美國鑄幣局 于1913至1938年间生产的一种 5美分面额 铜镍合金 硬币，由 雕塑家 詹姆斯·厄尔·弗雷泽设计。弗雷泽的作品一面是 美洲原住民，另一面是 美洲野牛。硬幣投產後出現問題，經常 …