Wikipedia ends the year with 49,311,393 articles in 301 languages (plus 2 language wikis with 0 articles), which constitutes a 5% increase in articles over the past year.
Wiktionary ends the year with approximately 30,407,727 entries in 153 languages (plus 21 language wikis with 0 entries), which constitutes a 10% increase in entries over the past year.
Wikiquote ends the year with approximately 215,548 content pages in 76 languages (plus 14 language wikis with 0 content pages), which constitutes a 7% increase in content pages over the past year.
Wikibooks ends the year with approximately 261,910 book modules in 99 languages (plus 22 language wikis with 0 book modules), which constitutes a 4% increase in book modules over the past year.
Wikisource ends the year with approximately 3,919,791 text units in 185 languages (comprising 3,893,221 units in 68 individual language wikis and an additional 26,570 units in 124 languages at the Multiligual Wikisource — 7 languages have content in both places), which constitutes a 8% increase in text units over the past year.
Wikinews ends the year with approximately 220,678 articles in 34 languages, which constitutes a 5% decrease in articles over the past year.
Wikiversity ends the year with approximately 106,919 learning modules in 70 languages (comprising 104,695 modules in 17 separate language wikis and an additional 2,224 modules in 53 languages at Wikiversity Beta), which constitutes a 7% increase in learning modules over the past year.
Wikivoyage ends the year with 104,975 articles in 21 languages, which constitutes a 6% increase in articles over the past year.
Wikimedia Commons ends the year with approximately 51,425,130 media files, which constitutes a 18% increase over the past year.
Wikispecies ends the year with approximately 648,331 content pages, which constitutes a 15% increase over the past year.
Wikidata ends the year with approximately 53,622,641 items, which constitutes a 27% increase over the past year.
Wikimedia Incubator ends the year with approximately 109,487 content pages across 1,016 test wikis in 726 different languages (including any test wikis that have been opened but are currently empty), which constitutes a 1% increase in content pages over the past year.
There were 13 content wikis created in 2018, 3 more than were created in 2017.
Note: The article counts listed above for Wikipedia and Wikivoyage are actual counts collected at 00:00 UTC on 2019-01-01. The article counts for all other projects were interpolated between counts collected at 12:00 UTC on 2018-12-31 and 12:00 UTC on 2019-01-01. All page counts are based on what MediaWiki sees as constituting an article (or content page), as reflected at each wiki's Special:Statistics page. Language counts include closed (but not deleted) wikis and count "Simple English" as a separate language when such a wiki exists within a project. The test wiki counts for Beta Wikiversity and the Incubator were checked in the early hours of 2019-01-03.
The Chinese Wikiquote has reached 10,000 total pages (after dropping below that level in February of this year when the wiki was recounted from scratch).
The Serbian Wikinews has fallen below 60,000 articles (currently at 56,260), and below 100,000 total pages, as a new (temporary) admin has been cleaning up the wiki after a decision to remove the "Време" ("Weather") pseudo-namespace (whose pages were in the main namespace).
Almost all Wikimedia content wikis have gotten a new administrator called (the local equivalent of) "Abuse filter" (in cases where that string has not been translated into the appropriate language, the name in a fallback language [usually English] has been used); this has caused the Asturian Wikipedia, Piedmontese Wikipedia and Uzbek Wikipedia to reach 10 administrators for the first time, and ten other wikis to go back up to 10 or 20 admins after falling below one of those levels sometime in the last few years. (This change was only visible in each affected wiki's list of admins [Special:UserList/sysop] and not in the user creation log [Special:Log/newusers], and was only seen on wikis that were notalready actively using the AbuseFilter extension [because otherwise the user would already exist, as it does on this wiki] — which caused much confusion. Interested parties should note that this newly created user is a "system user" not associated with any login account and is a side effect of a sysadmin running a maintenance script to detect certain technical problems in existing abuse filters; unless a wiki community explicitly chooses to make use of the AbuseFilter functionality, the new system user cannot actually perform any on-wiki actions, such as blocking users. See the Phabricator tasks T209565 and T212268 for more details — especially this comment by Daimona.)
The Swedish Wikiquote has reached 1,000 content pages, as an editor there has made a concerted effort to add links to many main-namespace pages.
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The Shan Wikipedia has reached 2,000 articles, as the "monthly" stub creation continues (see previous entry, below).
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The Shan Wikipedia, created last week, has reached 1,000 articles, as an admin has decided to create almost-empty stubs for every month of the twentieth century.
The Limburgish Wikinews is open for editing after being created as a standalone wiki four days ago, with content imported from the test wiki at the Incubator; the article count, which currently stands at 51 articles, will almost certainly increase significantly when the wiki is counted from scratch the first time at the end of this month.
The English Wikivoyage has dropped below 50 administrators (down to 47), as 9 admins there have been desysopped following at least 2 years of inactivity.
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The Tagalog Wikipedia has dropped below 80,000 articles, as an admin has deleted hundreds of mini-stubs about people/names.
The Wikimedia Foundation Governance wiki has fallen below 10,000 total pages; this wiki was recently moved from wikimediafoundation.org to foundation.wikimedia.org and is being refactored as a pure wiki (as opposed to a mix of wikicode and HTML, which the old wikimediafoundation.org site used to be) housing the Foundation's "governance and legal materials". Meanwhile, wikimediafoundation.org has been revamped as the primary corporate website of the Wikimedia Foundation (not a wiki). For more information about this change, see Wikimedia Foundation Governance Wiki and Wikimedia Foundation website.
Wikiversity Beta has fallen below 2,000 learning modules, following the deletion of (most of?) the Chinese content that was imported into the separate Chinese Wikiversity last month.
The Santali Wikipedia has reached 200 articles, after the importing of many articles that were accidentally missed when the content was initially imported from the Incubator test wiki earlier this month.
Nine days after being opened for editing, the on-wiki statistics of the Santali Wikipedia have been initialized (as a result of the regular, semimonthly recounting of all Wikimedia wikis), resulting in 162 articles.
Nine days after being opened for editing, the on-wiki statistics of the Chinese Wikiversity have been initialized, resulting in 518 learning modules.
The Pashto Wikivoyage is open for editing after being created as a standalone wiki on 8 June, with around 220 articles imported from the test wiki at the Incubator (non-working on-wiki statistics and post-import editing activity have made it impossible to determine the exact article count on this day).
The South Azerbaijani Wikipedia has reached 80,000 articles, as a bot has started creating thousands of stubs for places in Poland.
The Piedmontese Wikisource is open for editing after being created as a standalone wiki yesterday, with over 1,000 text units imported from the Multilingual Wikisource (non-working on-wiki statistics and post-import editing activity have made it impossible to determine the exact article count on this day).
The Bengali Wikivoyage is open for editing after being created as a standalone wiki yesterday, with fewer than 500 articles imported from the test wiki at the Incubator (non-working on-wiki statistics and post-import editing activity have made it impossible to determine the exact article count on this day—although it was probably around 350 articles).
The Urdu Wiktionary has reached 10,000 entries, as the flood of bot-created stubs continues (along with an effort to add links to more entries to get them counted as "articles").
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The recently opened Basque Wikisource has reached 10,000 page edits.
A new global preferences feature has been enabled on all non-Wikipedia Wikimedia wikis (see Special:Preferences, near the top, on any supported wiki); work continues on some remaining tasks before the feature can be rolled out to all the Wikipedias.
The Lingua Franca Nova Wikipedia has reached 2,000 articles, one month after being created as a standalone wiki.
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The Urdu Wiktionary has reached 5,000 entries, as a bot has been adding thousands of short entries for English terms (most of which do not contribute to the entry count).
The Abkhazian Wikipedia has reached 10,000 total pages, as the local admin has decided to create categories for works published in each individual year of the Common Era.
The Bengali Wiktionary has reached 10,000 entries, as a bot has been adding hundreds of stubs for country names in different languages.
The Lao Wikipedia has reached 10,000 registered users.
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The Ukrainian Wikisource has reached 100,000 page edits (after dropping below that level on 14 February 2018, which somehow went unreported at the time).
The comma-based article counting method has been completely removed from the MediaWiki code (as of version 1.31), and the two Wikimedia wikis that were using that method (English and Portuguese Wikibooks) have been switched to use the 'any' method (any non-redirect in a content namespace counts as an article).
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The Arabic Wiktionary has reached 100,000 total pages, as a bot has been adding thousands of templates for individual verses of the Quran.
The remaining 17 wikis have been recounted, with no additional milestones to report — apart from the "milestone" that this is surely the first time all Wikimedia wikis have had freshly counted (and therefore presumably "correct") statistics!
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Another 14 wikis have had their on-wiki statistics recounted from scratch, leaving 17 to go; no additional milestones to report (see 21 February entry for context).
The on-wiki statistics of almost all Wikimedia wikis have been recounted again (see 15 February entry, below), following the fixing of a bug that affected page counting for one week (specifically, newly created pages were not increasing the total page count). This time the plan is to recount all Wikimedia wikis, including the Wikimania wikis, chapter wikis, administrative wikis, etc. At this point, all but 31 of the largest wikis have been recounted (see the Phabricator task to track the progress). It appears that the only milestone attributable to the recounting (so far) is the Afrikaans Wikibooks milestone listed immediately above (the others that happened today can be explained by normal on-wiki editing activity).
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A crazy number of milestones have happened in the last 24 hours, as statistics have been recalculated for many Wikimedia content wikis (specifically, these); this includes all Wikibooks wikis, which have (presumably) never been completely recounted from scratch (except in a few isolated cases, as a result of individual bug reports). The numbers below were collected at around 4:35 a.m. (UTC) on February 14th (previous counts) and at around 6 a.m. (UTC) on February 15th (final counts). The recalculation of the statistics started about 20 minutes to midnight (UTC) on the evening on February 14th; it is not clear how long it took to finish. (Note that it is possible that some of these milestones happened for reasons other than the stats refresh.)
The following content wikis have reached new article-count milestones:
The English Wikibooks has reached 70,000 book modules (57,843 + 21,232 = 79,075, a 37% increase).
The Galician Wikibooks has reached 1,000 book modules (958 + 196 = 1,154, a 20% increase).
The Portuguese Wikibooks has reached 10,000 book modules (8,742 + 2,751 = 11,493, a 31% increase).
The Slovak Wikibooks has reached 500 book modules (491 + 28 = 519, a 6% increase).
The following content wikis have dropped below previously achieved article-count milestones:
The Arabic Wikibooks has fallen below 1,000 book modules (1,058 − 305 = 753, a 29% decrease).
The Azerbaijani Wikibooks has fallen below 2,000 book modules (2,022 − 310 = 1,712, a 15% decrease).
The Belarusian Wikibooks has fallen below 100 book modules (104 − 18 = 86, a 17% decrease).
The Chuvash Wikibooks has fallen below 100 book modules (164 − 98 = 66, a 60% decrease).
The Basque Wikibooks has fallen below 100 book modules (118 − 42 = 76, a 36% decrease).
The French Wikibooks has fallen below 15,000 book modules (19,209 − 4,541 = 14,668, a 24% decrease).
The Hebrew Wikibooks has fallen below 5,000 book modules (5,573 − 1,253 = 4,320, a 22% decrease).
The Hindi Wikibooks has fallen below 500 book modules (549 − 76 = 473, a 14% decrease).
The Croatian Wikibooks has fallen below 1,000 book modules (1,158 − 183 = 975, a 16% decrease).
The Hungarian Wikibooks has fallen below 30,000 book modules (30,752 − 1,150 = 29,602, a 4% decrease).
The Armenian Wikibooks has fallen below 100 book modules (324 − 254 = 70, a 78% decrease).
The Interlingua Wikibooks has fallen below 100 book modules (174 − 93 = 81, a 53% decrease).
The Icelandic Wikibooks has fallen below 500 book modules (636 − 170 = 466, a 27% decrease).
The Italian Wikibooks has fallen below 10,000 book modules (10,569 − 2,373 = 8,196, a 22% decrease).
The Georgian Wikibooks has fallen below 500 book modules (540 − 258 = 282, a 48% decrease).
The Latin Wikibooks has fallen below 100 book modules (197 − 131 = 66, a 66% decrease).
The Macedonian Wikibooks has fallen below 500 book modules (735 − 435 = 300, a 59% decrease).
The Malayalam Wikibooks has fallen below 100 book modules (189 − 93 = 96, a 49% decrease).
The Marathi Wikibooks has fallen below 100 book modules (137 − 122 = 15, an 89% decrease).
As a result of the stats refresh, the Azerbaijani Wiktionary, Russian Wikiquote, and Portuguese Wikisource have had their on-wiki statistics fixed (after being "broken" on February 9th), but none of these three wikis experienced any milestones like the ones reported above.
The Italian Wikipedia has reached 100,000,000 page edits (this wiki did not have its statistics recounted, so this milestone was due to normal wiki editing).
Several wikis have just seen a large increase in created user accounts (maybe for the same reason similar increases were seen on 13 December 2017?); the wikis listed here are the only ones for which the increase caused a user-count milestone, although other wikis might have been affected.
The Kyrgyz Wiktionary has reached 15,000 entries, as an IP editor has been adding hundreds of entries (including many lacking any definition or translation) for words in various languages.
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The Serbian Wikipedia has reached 600,000 articles, as the bot has continued with stubs about places in Mexico.
