The Portuguese Wikipedia () is the Portuguese-language edition of Wikipedia, the free encyclopedia. It was started on 11 May 2001.
Wikipedia is the 19th most accessed website in Brazil and the 10th most accessed in Portugal. , it is the largest Wikipedia by article count, containing articles. The Portuguese edition is one of the Wikipedias that does not allow edits from unregistered users. It disabled edits from IP editors in 2020.
From late 2004, the edition grew rapidly. In May 2005, it overtook both the Spanish and Italian language Wikipedias. By comparison, in May 2004 it was only the 17th Wikipedia by the number of articles.
Portuguese articles can contain variations of writing, as European Portuguese and Brazilian Portuguese have differences in vocabulary and usage. Articles can contain written characteristics of one or the other variant depending on who wrote the article.
The Portuguese Wikipedia community decided not to split a separate Brazilian Portuguese version off from the Portuguese Wikipedia.Andrew Lih, p. 136. In 2005, a proposal to fork Portuguese Wikipedia and create a Brazilian Portuguese ( pt-br) version was voted down by the Wikimedia community.Requests for new languages/Wikipedia Brazilian Portuguese In 2007 another one to create a European Portuguese version was rejected too by the Wikimedia community.Requests for new languages/Wikipedia European Portuguese In 2009 another one to create in Brazilian Portuguese was rejected, but this time by the language committee, according to new policies to create new Wikipedia editions,Language proposal policy with the following explanation: "Brazilian Portuguese is not a separate language.. this is a requirement."Requests for new languages/Wikipedia Brazilian Portuguese 2
Beginning in January 2007,In coincidence with a stalling of editing activity rates across all projects combined, see . the project experienced a decrease of the share of edits by unregistered users (from around 20 to around 15%) and an increase of the share of such edits being reverted, from about 15% to a peak of 25% in late 2008, and in particular ; no data available after early 2010, as of June 2013. which suggests an increase in disruptive editing. In the same month, a JavaScript was added that forced all unregistered users to preview their edit before saving it., 2007-01-31; removed from in 2008-01-25, the same day of introduction of an .
In December 2010, the Portuguese Wikipedia overtook the Dutch Wikipedia in number of articles, but in the first quarter of 2011, it was surpassed by the Russian and Dutch language Wikipedias, ranking in the tenth position. In April 2016, the project had 1388 active editors who made at least five edits in that month.
In April 2022, the European Union's East StratCom Task Force published its findings that four pro-Russian disinformation outlets ( SouthFront, NewsFront, InfoRos and Strategic Culture Foundation) were referenced in 45 articles of the Portuguese Wikipedia. This made it the Wikipedia edition that was the fourth most-affected by such disinformation, after the Russian, Arabic Wikipedia and Spanish Wikipedias. The Task Force wrote:
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