Wikipedia, a free-content online encyclopedia written and maintained by a community of volunteers known as Wikipedians, began with its first edit on 15 January 2001, two days after the domain was registered. It grew out of Nupedia, a more structured free encyclopedia, as a way to allow easier and faster drafting of articles and translations.
Wiktionary is a multilingual, web-based project to create a free content dictionary of terms in all natural languages and in a number of artificial languages. These entries may contain definitions, images for illustration, pronunciations, etymologies, inflections, usage examples, quotations, related terms, and translations of terms into other languages, among other features. It is collaboratively edited via a wiki. Its name is a portmanteau of the words wiki and dictionary. It is available in 192 languages and in Simple English. Like its sister project Wikipedia, Wiktionary is run by the Wikimedia Foundation, and is written collaboratively by volunteers, dubbed "Wiktionarians". Its wiki software, MediaWiki, allows almost anyone with access to the website to create and edit entries.
MediaWiki is a free and open-source wiki software originally developed by Magnus Manske for use on Wikipedia on January 25, 2002, and further improved by Lee Daniel Crocker, after which it has been coordinated by the Wikimedia Foundation. It powers several wiki hosting websites across the Internet, as well as most websites hosted by the Foundation including Wikipedia, Wiktionary, Wikimedia Commons, Wikiquote, Meta-Wiki and Wikidata, which define a large part of the set requirements for the software. MediaWiki is written in the PHP programming language and stores all text content into a database. The software is optimized to efficiently handle large projects, which can have terabytes of content and hundreds of thousands of views per second. Because Wikipedia is one of the world's largest and most visited websites, achieving scalability through multiple layers of caching and database replication has been a major concern for developers. Another major aspect of MediaWiki is its internationalization; its interface is available in more than 400 languages. The software has more than 1,000 configuration settings and more than 1,800 extensions available for enabling various features to be added or changed. Besides its usage on Wikimedia sites, MediaWiki has been used as a knowledge management and content management system on websites such as Fandom, wikiHow and major internal installations like Intellipedia and Diplopedia.
The English Wikipedia is the primary English-language edition of Wikipedia, an online encyclopedia. It was created by Jimmy Wales and Larry Sanger on January 15, 2001, as Wikipedia's first edition.
Wikisource is an online digital library of free-content textual sources on a wiki, operated by the Wikimedia Foundation. Wikisource is the name of the project as a whole and the name for each instance of that project ; multiple Wikisources make up the overall project of Wikisource. The project's aim is to host all forms of free text, in many languages, and translations. Originally conceived as an archive to store useful or important historical texts, it has expanded to become a general-content library. The project officially began on November 24, 2003, under the name Project Sourceberg, a play on Project Gutenberg. The name Wikisource was adopted later that year and it received its own domain name.
Heinrich Magnus Manske is a German biochemist, who is a leading researcher on malaria. He is a senior staff scientist at the Wellcome Sanger Institute in Cambridge, UK and a software developer of one of the first versions of the MediaWiki software, which powers Wikipedia and a number of other wiki-based websites.
The Wikimedia movement is the global community of contributors to the Wikimedia projects, including Wikipedia. This community directly builds and administers these projects with the commitment of achieving this using open standards and software.
Semantic MediaWiki (SMW) is an extension to MediaWiki that allows for annotating semantic data within wiki pages, thus turning a wiki that incorporates the extension into a semantic wiki. Data that has been encoded can be used in semantic searches, used for aggregation of pages, displayed in formats like maps, calendars and graphs, and exported to the outside world via formats like RDF and CSV.
The Welsh Wikipedia is the Welsh-language edition of Wikipedia. This edition was started in July 2003. On 23 June 2007, it reached 10,000 articles, the 66th Wikipedia to do so. On 20 November 2008, it attained 20,000 articles. Less than a year later, on 28 October 2009, it reached 25,000 articles. In July 2013 it reached 50,000 articles and is now the 41st largest Wikipedia edition. It is the only internet resource of its kind in Welsh and has an average of 2.7 million hits every month, making it the most popular Welsh language website. It, therefore, has an important place in Welsh language online culture.
The Wikimedia Foundation, Inc., abbreviated WMF, is an American 501(c)(3) nonprofit organization headquartered in San Francisco, California, and registered there as a charitable foundation. It is best known as the host of Wikipedia, the seventh most visited website in the world. However, the foundation also hosts 14 other related content projects. It also supports the development of MediaWiki, the wiki software that underpins them all.
The Swedish Wikipedia is the Swedish-language edition of Wikipedia and was started on the 23 of May 2001. It is currently the fifth largest Wikipedia by article count with its 2,582,306 current articles, it has a Wikipedia article depth of 17.48. A majority were generated by Lsjbot, a bot, or software application. The administrators on the Swedish Wikipedia are elected for a fixed-term period of one year and have to be re-elected after that time.
Wikitravel is a web-based collaborative travel guide based on the wiki format and owned by Internet Brands. It was most active from 2003 through 2012, when most of its editing community left and brought their contributions to the nonprofit Wikivoyage guide.
The Scots Wikipedia is the Scots-language edition of the free online encyclopedia, Wikipedia. It was established on 23 June 2005, and it first reached 1,000 articles in February 2006, and 5,000 articles in November 2010. As of April 2024, it has about 35,000 articles. The Scots Wikipedia is one of the ten Wikipedias written in an Anglic language or English-based pidgin or creole, the others being the English Wikipedia, the Simple English Wikipedia, the Old English Wikipedia, the Pitkern-Norfuk Wikipedia, the Tok Pisin Wikipedia, the Jamaican Patois Wikipedia, the Sranan Tongo Wikipedia, the Nigerian Pidgin Wikipedia, and the Ghanaian Pidgin Wikipedia.
Wikidata is a collaboratively edited multilingual knowledge graph hosted by the Wikimedia Foundation. It is a common source of open data that Wikimedia projects such as Wikipedia, and anyone else, is able to use under the CC0 public domain license. Wikidata is a wiki powered by the software MediaWiki, including its extension for semi-structured data, the Wikibase. As of early 2023, Wikidata had 1.54 billion item statements.
translatewiki.net, formerly named Betawiki, is a web-based translation platform powered by the Translate extension for MediaWiki. It can be used to translate various kinds of texts but is commonly used for creating localisations for software interfaces.
A WikiProject, or Wikiproject, is an affinity group for contributors with shared goals within the Wikimedia movement. WikiProjects are prevalent within the largest wiki, Wikipedia, and exist to varying degrees within sibling projects such as Wiktionary, Wikiquote, Wikidata, and Wikisource. They also exist in different languages, and translation of articles is a form of their collaboration.
AfroCrowd is an initiative to create and improve information about Black culture and history on Wikipedia. The New York City-based project was founded by Alice Backer in 2015.
Abstract Wikipedia is an in-development project of the Wikimedia Foundation. It aims to use Wikifunctions to create a language-independent version of Wikipedia using its structured data. First conceived in 2020, Abstract Wikipedia has been under active development ever since, with the related project of Wikifunctions launched successfully in 2023. Nevertheless, the project has proved controversial. As envisioned, Abstract Wikipedia would consist of "Constructors", "Content", and "Renderers".
Zdenko "Denny" Vrandečić is a Croatian computer scientist. He was a co-developer of Semantic MediaWiki and Wikidata, the lead developer of the Wikifunctions project, and an employee of the Wikimedia Foundation as a Head of Special Projects, Structured Content. He published modules for the German role-playing game The Dark Eye.
