Knowledge (XXG)

The logo of Knowledge (XXG), a free online encyclopedia, is an unfinished puzzle globe—some jigsaw pieces are missing at the top—each inscribed with a glyph from a different writing system. As displayed on the web pages of the English-language edition of the project, there is the wordmark "WIKIPEDIA" (stylized as WikipediA) under the globe, and below that, the text "The 💕" in the free Linux Libertine font, which is open-source.

In January 2001, Jimmy Wales used the flag of the United States as a placeholder logo for Knowledge (XXG)'s UseModWiki instance. Knowledge (XXG)'s first true logo was an image originally submitted by Bjørn Smestad – under the username Bjornsm – for a Nupedia logo competition which took place in 2000. It was used provisionally as Knowledge (XXG)'s logo until the end of 2001.

The logo included a quote from the preface of the 1879 book Euclid and his Modern Rivals by Lewis Carroll. It utilized the fisheye effect to make the text appear to be wrapped onto a sphere, leaving only part of it readable. The used text was (visible text in bold):

In one respect this book is an experiment, and may chance to prove a failure: I mean that I have not thought it necessary to maintain throughout the gravity of style which scientific writers usually affect, and which has somehow come to be regarded as an 'inseparable accident' of scientific teaching. I never could quite see the reasonableness of this immemorial law: subjects there are, no doubt, which are in their essence too serious to admit of any lightness of treatment – but I cannot recognise Geometry as one of them. Nevertheless it will, I trust, be found that I have permitted myself a glimpse of the comic side of things only at fitting seasons, when the tired reader might well crave a moment's breathing-space, and not on any occasion where it could endanger the continuity of the line of argument.

In November 2001, Knowledge (XXG) users began suggesting new logos for the website. A list of 24 leading candidates was chosen in the contest, which took place from November to December 2001. The winner was the last logo (#24), contributed by the user The Cunctator.

The logo included the quote, taken from Thomas Hobbes's 1651 book Leviathan, from chapter VI of part I, placed within the circle and distorted by the fisheye effect. Underneath it was written "Knowledge (XXG)" in the capital letters, with W and A being slightly taller than the others. Beneath that was placed the motto of Knowledge (XXG): The 💕. The text used for the logo was (visible text in bold):

Desire to know why, and how, curiosity; such as is in no living creature but man: so that man is distinguished, not only by his reason, but also by this singular passion from other animals; in whom the appetite of food, and other pleasures of sense, by predominance, take away the care of knowing causes; which is a lust of the mind, that by a perseverance of delight in the continual and indefatigable generation of knowledge, exceedeth the short vehemence of any carnal pleasure.

The logo of the French Knowledge (XXG) used until 2003

The logo of the Swedish Knowledge (XXG) used until 2003

As the logo utilized text in English language, its usage was not favored by other-language versions of Knowledge (XXG). Some websites used similar designs with texts in their own languages. For example, Dutch Knowledge (XXG) used text from Multatuli's 1860 Max Havelaar classic book. Other websites used the logo with English text, painted in the colours of the national flags. Such design was used for example by Danish and Swedish versions, using the flags of Denmark and Sweden, respectively. The other option used by some versions of Knowledge (XXG) was to design their own distinct logos, for example the French Knowledge (XXG), which used the green circle with a white dove on it, as its logo. Additionally, some websites used a logo with English text in it, with the motto "The 💕" translated to their languages. It was done, for example, by the German Knowledge (XXG).

Contest-winning puzzle ball logo by Paul Stansifer (Paullusmagnus)

Redesign of the logo by David Friedland (Nohat)

Final version of the logo adapted by Knowledge (XXG) in 2003

In 2003, following a suggestion by Erik Möller, known under the username Eloquence, an international logo contest was conducted to find a new logo that was suitable for all language versions of Knowledge (XXG). After a two-stage voting process, a design by Paul Stansifer, at the time known under username Paullusmagnus, won with considerable support. His project depicted an unfinished globe constructed of puzzle pieces, of multiple colors. It was covered by text with links in various languages and writing systems, to symbolize the continuous construction and development of the project. It was made in POV-Ray, using a puzzle image wrapped around a sphere.

A ratification vote was held soon after, to confirm community consensus. As a result, twelve direct adaptations of the design were created by members of the community. One of the propositions made by David Friedland, known under username Nohat, was chosen. Friedland removed the color and changed the overlaid text into one letter or symbol per puzzle piece. His design included various characters from various writing systems. The writing in the logo used Hoefler Text font.

Before being officially released, the logo slightly lightened up and had replaced nearly obsolete kana wi (ヰ) from katakana script with modern kana wa (ワ) and small i (ィ). A smooth breathing mark before the Greek omega (Ω) was deleted and Russian Short I (Й) replaced by Russian I (И). It was adopted by the English Knowledge (XXG) on 26 September 2003.

The logo included 16 characters from 16 different writing scripts, many of which—but not all, chosen to represent due to their similarity to letter W from English language, as in the name Knowledge (XXG). The alphabets represented were as follows:

Table with location of glyphs in the 2003 logo

Armenian ini(Ի, transcription: i)	—	—	—
Khmer lo(ល, transcription: lɔɔ)	—	Japanese Katakana wa + i(ワィ, romanization: wai)	Klingon r(, transcription: r)
Tibetan wa + i(ཝི, transcription: wi)	Greek capital omega(Ω, transcription: o)	Latin capital W	Arabic isolated yodh(ي‎, transcription: y)
Devanagari va + i(वि, transcription: vi)	Simplified Chinese radical 145+5 strokes(袓, pinyin: jù, jiē)	Cyrillic capital I(И, transcription: i)	Korean Hangul wicombined letters ieung, u and i(위, transcription: wi)
Mongolian Todo I (rotated 90 degrees)(ᡅ, transcription: i)	Kannada va + i(ವಿ)	Hebrew resh(ר‎, transcription: r)	Thai chà(ฉ, transcription: ch)

Two versions of the 2003 logo

Version with Ω and И	Version with Ώ and Й‎
(and with ワィ)		(and with ウィ)
Examples:Portuguese	Examples:Polish	Examples:French
English	Chinese	English
ΩGreek capital omega(Ω, transcription: o)	ΏGreek capital omega with tonos(Ώ, transcription: ó)
ИCyrillic capital I(И, transcription: i)	ЙCyrillic capital Short I(Й, transcription: y)

The logo included several mistakes. Due to a formatting error:

• letters va + i (वि) from Devanagari script were rendered incorrectly, being reversed in the process, showing as (व​ि).
• In the combined letters va + i (ವಿ) from Kannada script, the diacritic was attached to the wrong place.
• In the case of the Japanese katakana, there was used a wrong kana: wa (ワ) was mistakenly used instead of kana u (ウ), forming wai (ワィ), instead of wi (ウィ), which is present in the Japanese name of the website, Knowledge (XXG) (ウィキペディア).

Knowledge (XXG) logos used on the mobile application and website

In late 2009, the Wikimedia Foundation undertook the efforts to fix the errors and generally update the puzzle globe logo. Among other concerns, the original logo did not scale well and some letters appeared distorted. For the new logo, the Wikimedia Foundation defined which characters appear on the "hidden" puzzle pieces, and had a three-dimensional computer model of the globe created to allow the generation of other views.

The new design was published in May 2010. It features the new 3D rendering of the puzzle globe, as well as correct versions of previously wrong characters, including fixed versions of letters from Kannada and Devanagari, and usage of correct Japanese katakana characters. Additionally, several letters had been replaced by others. It included:

• ini (Ի) being replaced with vev (Վ), both originating from the Armenian alphabet;
• letter lo (ល) being replaced with combined letters vo and i (វិ), both originating from the Khmer script;
• combined letters wa and i (ཝི) from Tibetan script being replaced by short u (উ) letter from Bengali–Assamese script, while Tibetan character was moved elsewhere;
• letter Todo I (ᡅ) from Mongolian script being replaced by letter vini (ვ) from the Georgian Mkhedruli script;
• radical 145+5 strokes (袓) from Simplified Chinese script being replaced by radical 120+8 strokes (維) from the Traditional Chinese script.
• letter resh (ר‎) being replaced by letter waw (ו‎), both originating from the Hebrew alphabet;
• r () from Klingon pIqaD script being replaced by letter wə (ው) from the Geʽez script;
• letter yodh (ي‎) being replaced by letter waw (و‎), both originating from the Arabic script;
• letter cho (ฉ) being replaced by combined letters wo waen and sara i (วิ), both originating from the Thai script.

The wordmark has been modified from the Hoefler Text font to the open-source Linux Libertine font, and the subtitle was no longer italicized. The "W" character, which was used in various other places in Knowledge (XXG), such as the favicon, and was seen as a distinctive part of the Knowledge (XXG) brand, was stylized as crossed V's in the original logo, while the W in Linux Libertine was rendered with a single line. To provide the traditional appearance of the Knowledge (XXG) "W", a "crossed" W was added as an OpenType variant to the Linux Libertine font.

For the new logo, the entire surface of its globe was designed, including puzzle pieces hidden on the non-visible parts of the logo. In total, there were designed 51 puzzle pieces, of which 18 were visible in the logo. There were 21 empty spaces left, for the missing puzzles.

The visible puzzle pieces are:

• in the leftmost column, from the top down: capital letter vev (Վ, transcription: v) from the Armenian alphabet, combined letters vo and i (វិ, transcription: vi) from the Khmer script, letter short u (উ, transcription: u) from the Bengali alphabet, combined letters va and i (वि, transcription: vi) from Devanagari script, letter vini (ვ, transcription: v) from Georgian Mkhedruli script;
• in the middle-left column, from the top down: capital letter omega (Ω, transcription: o) from the Greek alphabet, the Radical 120 with 8 additional strokes (維) from the Traditional Chinese script, letter vi (ವಿ, transcription: vi) from the Kannada script, combined letters wa and i (ཝི, transcription: wi) from the Tibetan script;
• in the middle-right column, from the top down: kanas u and small i (ウィ, romanization: wi) from the katakana script, capital letter W from the Latin script, capital letter i (И, transcription: i) from the Cyrillic script, letter waw (ו‎, transcription: v) from the Hebrew alphabet, combined letters va and i (வி, transcription: vi) from the Tamil script;
• in the rightmost column, from the top down: letter wə (ው, transcription: wə) from the Geʽez script, isolated letter waw (و‎, transcription: w) from the Arabic alphabet, combined letters ieung, u and i (위, transcription: wi) from the Hangul script, combined letters wo waen and sara i (วิ, transcription: vi) from the Thai script.

The puzzle pieces from the not visible portion of the logo are:

• in the central left column, from the top down: capital letter V from the Latin script, combined letters yodh and aleph (يا‎, transcription: yā) from the Arabic alphabet;
• in the first row to the left from the central left column, from the top down: capital letter wi (Ꮻ, transcription: wi) from the Cherokee syllabary, letter wa (ᥝ, transcription: v) from the Tai Le script, capital letter pi (Π, transcription: p) from the Greek alphabet;
• in the second row to the left from the central left column, from the top down: combined letters va and i (వి, transcription: vi) from the Telugu script, capital letter E-acute (É) from the Latin script, combined letters v and i (ဝီ, transcription: vi) from the Mon–Burmese script, letter o (ᐅ, transcription: o) from the Canadian Aboriginal syllabics, combined letters wa and i (ᤘᤡ) from the Limbu script;
• in the third row to the left from the central left column, from the top down: letter uuinne (𐍅, transcription: w) from the Gothic alphabet, letter u (ଉ, transcription: u) from the Odia script, combined letters va and i (വി, transcription: vi) from the Malayalam script, letter wa (ᠸ, transcription: w) from the Mongolian script;
• in the fourth row to the left from the central left column, from the top down: combined letters va and i (વિ, transcription: vi) from the Gujarati script, combined letters wa and i (ᨓᨗ, transcription: wi) from the Lontara script, letter vedi (Ⰲ, transcription: vi) from the Glagolitic script, capital letter U from the Latin script;
• in the central right column, from the top down: capital letter de (Д, transcription: d) from the Cyrillic script, capital dotted I (İ) from the Latin script;
• in the first row to the right from the central right column: combined letters va and i (වි, transcription: vi) from the Sinhala script;
• in the second row to the right from the central right column, from the top down: combined letters vava and sihari (ਵਿ, transcription: vi) from the Gurmukhi script, combined letters vaavu and i (ވި, transcription: vi) from the Thaana script, capital letter H from the Latin script, capital letter A-umlaut (Ä) from the Latin script;
• in the third row to the right from the central right column, from the top down: capital letter ya (Я, transcription: ya), combined letters w and i (ວິ, transcription: vi) from the Lao script, capital letter u (У, transcription: u) from the Cyrillic script, radical 12 with additional 6 strokes (典, pinyin: diǎn) from the Traditional Chinese script;
• in the fourth row to the right from the central right column, from the top down: combined letters wa and i (ꦮꦶ, transcription: wi) from the Javanese script, isolated letter waw (ܘ, transcription: w) from the Syriac alphabet, capital letter ve (В, transcription: v) from the Cyrillic script, letter wi (ᜏᜒ, transcription: wi) from the Baybayin script.

Table with location of glyphs in the 2010 logo

				—	—	—
				—	—	—
—	—	—	—	Armenian vev(Վ)	—	—	—	—	—
—	—	—	Telugu va + (i)(వి)	Khmer vo + i(វិ)	—	Katakana u + small i(ウィ)	Gəʿəz wə(ው)	—	—
Javanese wa + i(ꦮꦶ)	Gujarati va + i(વિ)	Gothic vinja(𐍅)	Latin E-acute(É)	>Bengali–Assamese short u(উ)	Greek omega(Ω)	Latin W	Arabic waw(و‎)	Gurmukhī vava + sihari(ਵਿ)	Cyrillic ya(Я)
Syriac wāw(ܘ)	Lontara w + i(ᨓᨗ)	Oriya U(ଉ)	Burmese script v + i(ဝီ)	Devanagari va + i(वि)	Traditional Chinese維	Cyrillic i(И)	Hangul/Chosongul wi(위)	Tāna vaavu + (i)(ވި)	Laotian w + i(ວິ)
Cyrillic ve(В)	Glagolitic vědě(Ⰲ)	Malayalam va + short i(വി)	Inuktitut short u(ᐅ)	Georgian vini(ვ)	Kannada va + (i)(ವಿ)	Hebrew vav(ו‎)	Thai wo waen + sara i(วิ)	Latin H	Cyrillic u(У)
Tagalog Baybayin wi(ᜏᜒ)	Latin U	Mongolian wa(ᠸ)	Limbu wa + i(ᤘᤡ)	Cherokee wi(Ꮻ)	Tibetan wa + (i)(ཝི)	Tamil va + (i)(வி)	Sinhala va + i(වි)	Latin A-umlaut(Ä)	Chinese character典
				Tai Le wa(ᥝ)	Latin V	Cyrillic de(Д)
				Greek pi(Π)	Arabic yāʾ + ʾalif(يا‎)	Latin dotted I(İ)

On 15 January 2011, a special logo replaced the standard globe on the English Knowledge (XXG) in order to mark the tenth anniversary of Knowledge (XXG)'s founding. The logo depicts a single black jigsaw piece, representing the addition of another piece to the puzzle. On it is written "10 years".

First logo for the twentieth anniversary of Knowledge (XXG)

Second logo for the twentieth anniversary of Knowledge (XXG)

On 14 January 2021, a four-sectioned logo was used instead of the puzzle globe on the English Knowledge (XXG), in order to mark the 20th anniversary of Knowledge (XXG). The four sections, depict, in clockwise order, starting from the top-left:

• yellow background, a woman in a hijab reading a book with the letter "W" on the cover, signifying Knowledge (XXG);
• blue background, a computer showing a blue screen with the letter "W" on it, signifying Knowledge (XXG);
• red background, a phone showing a blue screen with the letter "W" on it, signifying Knowledge (XXG);
• green background, the normal Knowledge (XXG) globe, in blue, but with most letters aside from the "W" being replaced with various other objects and symbols.

On 22 January 2021, the previous anniversary logo was replaced with a less striking version, consisting of the normative Knowledge (XXG) globe above the text "20 years of Knowledge (XXG) – Over One Billion Edits" to commemorate the concurrent milestone of reaching one billion recorded edits to the English Knowledge (XXG).

In 2009, the Wikimedia Foundation had put a 3D printed sign depicting a half of the Knowledge (XXG) globe, in its headquarters in San Francisco, California, United States. It was made by Because We Can, a design firm based in Oakland, California.

On 22 October 2014, in the town of Słubice, Poland, was unveiled the Knowledge (XXG) Monument, a statue by sculptor Mihran Hakobyan honoring Knowledge (XXG) contributors. The monument depicts four nude figures holding aloft a globe based on the Knowledge (XXG) logo, reaching over two metres (6 ft 7 in) up, made out of the fiber and resin. It is the world's first monument to the online encyclopedia.

On 29 September 2017, the sculpture of the logo of Knowledge (XXG) was submerged to the bottom of Lake Sevan in Armenia, to form an artificial reef. It was done thanks to the joint efforts of the Wikimedia Armenia community and ArmDiving divers' club. The 2 metre-wide and 2 metre-high (6 ft 7 in by 6 ft 7 in) sculpture (the largest depiction of Knowledge (XXG) logo in the world) was made in Armenia for the annual meeting of the Central and Eastern Europe Wikimedia affiliates, Wikimedia CEE Meeting that the country hosted in August 2016 in Dilijan.

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  The signage of the Knowledge (XXG) logo at the Wikimedia Foundation headquarters in San Francisco, California, in 2009
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  The 2014 Knowledge (XXG) Monument, sculpted by Mihran Hakobyan, displayed in Słubice, Poland
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  The sculpture of the logo of Knowledge (XXG), prior to being submerged in Lake Sevan in Armenia, in 2016

The 2010 logo is registered with the Madrid system under registration numbers 1221024, 1221826, and 1238122.

In the United States, the 2003 and 2010 logos are registered trademarks under registration numbers 3594356 and 4710546, respectively.

The 2003 and 2010 logos are registered as a Community Trade Mark of the European Union by the Wikimedia Foundation. The 2003 logo bears a filing date of 31 January 2008 and a registration date of 20 January 2009. The 2010 logo bears a filing date of 28 March 2014 and a registration date of 22 August 2014.

On 1 January 2021, the 2003 and 2010 logos were granted UK trademark numbers as a result of Brexit.

On 24 October 2014, the Wikimedia Foundation released the logo, along with all other logos belonging to the Foundation, under the Creative Commons Attribution-ShareAlike 3.0 license.

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  2001 (tentative)
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  2001–2003
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  Logo of the French Knowledge (XXG) (2002–2003)
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  Logo of the Dutch Knowledge (XXG) (2002–2003)
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  Logo of the Spanish Knowledge (XXG) (2002–2003)
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  Logo of the Swedish Knowledge (XXG) (2003)
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  2003–2010
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  2010–present

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  Fifth anniversary of the Hebrew Knowledge (XXG) (2006)
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  Fourth anniversary of the Asturian Knowledge (XXG) (2008)
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  Tenth anniversary of Knowledge (XXG) (2011)
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  Tenth anniversary of Knowledge (XXG) celebrated on the Azerbaijani Knowledge (XXG) (2011)
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  Tenth anniversary of Knowledge (XXG) celebrated on the Basque Knowledge (XXG) (2011)
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  Tenth anniversary of Knowledge (XXG) celebrated on the Belarusian Taraškievica Knowledge (XXG) (2011)
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  Tenth anniversary of Knowledge (XXG) celebrated on the Chinese edition. Traditional Chinese red variant (2011)
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  Tenth anniversary of Knowledge (XXG) celebrated on the Chinese edition. Traditional Chinese black variant (2011)
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  Tenth anniversary of Knowledge (XXG) celebrated on the Chinese edition. Traditional Chinese black corner variant (2011)
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  Tenth anniversary of Knowledge (XXG) celebrated on the Chinese edition. Traditional Chinese orange variant (2011)
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  Tenth anniversary of Knowledge (XXG) celebrated on the Chinese edition. Simplified Chinese red variant (2011)
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  Tenth anniversary of Knowledge (XXG) celebrated on the Chinese edition. Simplified Chinese black variant (2011)
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  Tenth anniversary of the Basque Knowledge (XXG) (2011)
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  Tenth anniversary of the Polish Knowledge (XXG) (2011)
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  Tenth anniversary of the Greek Knowledge (XXG) (2012)
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  Tenth anniversary of the Alemannic Knowledge (XXG) (2013)
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  Tenth anniversary of the Aragonese Knowledge (XXG) (2014)
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  Tenth anniversary of the Asturian Knowledge (XXG) (2014)
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  Tenth anniversary of the Ukrainian Knowledge (XXG) (2014)
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  Tenth anniversary of the Aragonese Knowledge (XXG) (2015)
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  Tenth anniversary of the Cantonese Knowledge (XXG) (2016)
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  Tenth anniversary of the Belarusian Knowledge (XXG) (2017)
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  Fifteenth anniversary of the Azerbaijani Knowledge (XXG) (2019)
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  Fifteenth anniversary of the Ukrainian Knowledge (XXG) (2019)
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  Sixteenth anniversary of the Ukrainian Knowledge (XXG) (2020)
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  1st logo for twentieth anniversary of Knowledge (XXG) on English edition (2021)
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  2nd logo for twentieth anniversary of Knowledge (XXG) on English edition (2021)
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  Twentieth anniversary of Knowledge (XXG) on Chinese edition (2021)
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  Twentieth anniversary of the Polish Knowledge (XXG) (2021)
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  Twentieth anniversary of the Spanish Knowledge (XXG) (2021)
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  Twentieth anniversary of the Russian Knowledge (XXG) (2021)
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  Twentieth anniversary of the Vietnamese Knowledge (XXG) (2021)
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  Seventeenth anniversary of the Ukrainian Knowledge (XXG) (2021)
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  Eighteenth anniversary of the Ukrainian Knowledge (XXG) (2022)
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  Twentieth anniversary of the Greek Knowledge (XXG) (2022)
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  Twentieth anniversary of the Turkish Knowledge (XXG) (2022)
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  Twentieth anniversary of the Indonesian Knowledge (XXG) (2023)

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  1 000 articles on the Aragonese Knowledge (XXG) (2005)
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  50 000 articles on the Chinese Knowledge (XXG) (2005)
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  50 000 articles on the Italian Knowledge (XXG) (2005)
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  100 000 articles on the Italian Knowledge (XXG) (2005)
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  15 000 articles on the Romanian Knowledge (XXG) (2005)
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  14 000 articles on the Serbian Knowledge (XXG) (2005)
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  15 000 articles on the Serbian Knowledge (XXG) (2005)
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  100 articles on the Udmurt Knowledge (XXG) (2005)
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  20 000 articles on the Arabic Knowledge (XXG) (2006)
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  5 000 articles on the Aragonese Knowledge (XXG) (2006)
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  30 000 articles on the Korean Knowledge (XXG) (2006)
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  10 000 articles on the Vietnamese Knowledge (XXG) (2006)
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  30 000 articles on the Arabic Knowledge (XXG) (2007)
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  50 000 articles on the Arabic Knowledge (XXG) (2007)
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  10 000 articles on the Asturian Knowledge (XXG) (2007)
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  150 000 articles on the Chinese Knowledge (XXG) (2007)
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  20 000 articles on the Greek Knowledge (XXG) (2007)
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  30 000 articles on the Greek Knowledge (XXG) (2007)
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  50 000 articles on the Turkish Knowledge (XXG) (2007)
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  40 000 articles on the Korean Knowledge (XXG) (2007)
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  60 000 articles on the Arabic Knowledge (XXG) (2008)
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  10 000 articles on the Aragonese Knowledge (XXG) (2008)
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  100 000 articles on the Catalan Knowledge (XXG) (2008)
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  200 000 articles on the Chinese Knowledge (XXG) (2008)
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  100 000 articles on the Czech Knowledge (XXG) (2008)
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  100 000 articles on the Esperanto Knowledge (XXG) (2008)
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  100 000 articles on the Hungarian Knowledge (XXG) (2008)
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  50 000 articles on the Korean Knowledge (XXG) (2008)
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  60 000 articles on the Korean Knowledge (XXG) (2008)
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  70 000 articles on the Korean Knowledge (XXG) (2008)
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  80 000 articles on the Korean Knowledge (XXG) (2008)
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  100 000 articles on the Turkish Knowledge (XXG) (2008)
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  100 000 articles on the Ukrainian Knowledge (XXG) (2008)
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  30 000 articles on the Vietnamese Knowledge (XXG) (2008)
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  50 000 articles on the Vietnamese Knowledge (XXG) (2008)
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  75 000 articles on the Vietnamese Knowledge (XXG) (2008)
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  250 000 articles on the Chinese Knowledge (XXG) (2009)
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  1 million articles on the German Knowledge (XXG) (2009)
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  50 000 articles on the Greek Knowledge (XXG) (2009)
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  100 000 articles on the Korean Knowledge (XXG) (2009)
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  10 000 articles on the Malayalam Knowledge (XXG) (2009)
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  500 000 articles on the Portuguese Knowledge (XXG) (2009)
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  400 000 articles on the Russian Knowledge (XXG) (2009)
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  100 000 articles on the Serbian Knowledge (XXG) (2009)
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  150 000 articles on the Ukrainian Knowledge (XXG) (2009)
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  100 000 articles on the Vietnamese Knowledge (XXG) (2009)
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  10 000 articles on the Armenian Knowledge (XXG) (2010)
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  50 000 articles on the Basque Knowledge (XXG) (2010)
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  100 000 articles on the Bulgarian Knowledge (XXG) (2010)
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  250 000 articles on the Catalan Knowledge (XXG) (2010)
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  90 000 articles on the Croatian Knowledge (XXG) (2010)
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  300 000 articles on the Chinese Knowledge (XXG) (2010)
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  150 000 articles on the Czech Knowledge (XXG) (2010)
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  1 million articles on the French Knowledge (XXG) (2010)
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  50 000 articles on the Greek Knowledge (XXG) (2010)
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  700 000 articles on the Italian Knowledge (XXG) (2010)
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  150 000 articles on the Korean Knowledge (XXG) (2010)
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  100 000 articles on the Lithuanian Knowledge (XXG) (2010)
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  100 000 articles on the Persian Knowledge (XXG) (2010)
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  500 000 articles on the Russian Knowledge (XXG) (2010)
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  600 000 articles on the Russian Knowledge (XXG) (2010)
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  150 000 articles on the Turkish Knowledge (XXG) (2010)
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  200 000 articles on the Ukrainian Knowledge (XXG) (2010)
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  25 000 articles on the Aragonese Knowledge (XXG) (2011)
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  50 000 articles on the Azerbaijani Knowledge (XXG) (2011)
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  150 000 articles on the Esperanto Knowledge (XXG) (2011)
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  200 000 articles on the Vietnamese Knowledge (XXG) (2011)
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  200 000 articles on the Arabic Knowledge (XXG) (2012)
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  200 000 articles on the Korean Knowledge (XXG) (2012)
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  500 000 articles on the Swedish Knowledge (XXG) (2012)
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  250 000 articles on Vietnamese Knowledge (XXG) (2012)
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  500 000 articles on Vietnamese Knowledge (XXG) (2012)
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  500 000 articles on the Swedish Knowledge (XXG) (2012)
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  100 000 articles on the Armenian Knowledge (XXG) (2013)
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  150 000 articles on the Hebrew Knowledge (XXG) (2013)
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  250 000 articles on the Korean Knowledge (XXG) (2013)
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  100 000 articles on the Latin Knowledge (XXG) (2013)
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  50 000 articles on the Latvian Knowledge (XXG) (2013)
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  1 million articles on the Russian Knowledge (XXG) (2013)
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  1 million articles on the Swedish Knowledge (XXG) (2013)
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  750 000 articles on the Vietnamese Knowledge (XXG) (2013)
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  1 million articles on the Vietnamese Knowledge (XXG) (2013)
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  100 000 articles on the Azerbaijani Knowledge (XXG) (2014)
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  200 000 articles on the Esperanto Knowledge (XXG) (2014)
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  100 000 articles on the Greek Knowledge (XXG) (2014)
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  400 000 articles on the Persian Knowledge (XXG) (2014)
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  1 million articles on the Vietnamese Knowledge (XXG) (2014)
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  400 000 articles on the Arabic Knowledge (XXG) (2015)
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  50 000 articles on the Asturian Knowledge (XXG) (2015)
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  100 000 articles on the Belarusian Knowledge (XXG) (2015)
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  300 000 articles on the Korean Knowledge (XXG) (2015)
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  200 000 articles on the Slovak Knowledge (XXG) (2015)
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  2 million articles on the Swedish Knowledge (XXG) (2015)
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  200 000 articles on the Armenian Knowledge (XXG) (2016)
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  500 articles on the Atikamekw Knowledge (XXG) (2016)
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  1000 articles on the Atikamekw Knowledge (XXG) (2016)
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  400 000 articles on the Finnish Knowledge (XXG) (2016)
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  2 million articles on the French Knowledge (XXG) (2016)
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  2 million articles on the German Knowledge (XXG) (2016)
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  400 000 articles on the Hungarian Knowledge (XXG) (2016)
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  5 000 articles on the Kashubian Knowledge (XXG) (2016)
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  500 000 articles on the Persian Knowledge (XXG) (2016)
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  3 million articles on the Swedish Knowledge (XXG) (2016)
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  400 000 articles on the Korean Knowledge (XXG) (2017)
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  300 000 articles on the Turkish Knowledge (XXG) (2017)
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  150 000 articles on the Belarusian Knowledge (XXG) (2018)
• 
  250 000 articles on the Esperanto Knowledge (XXG) (2018)
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  1.5 million articles on the Russian Knowledge (XXG) (2018)
• 
  150 000 articles on the Azerbaijani Knowledge (XXG) (2019)
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  200 000 articles on the Belarusian Knowledge (XXG) (2020)
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  6 million articles on the English Knowledge (XXG) (2020)
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  100 000 articles on the Latvian Knowledge (XXG) (2020)
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  500 000 articles on the Korean Knowledge (XXG) (2020)
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  1 million articles on the Ukrainian Knowledge (XXG) (2020)
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  1 250 000 articles on the Vietnamese Knowledge (XXG) (2020)
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  1 500 000 articles on the Polish Knowledge (XXG) (2021)
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  500 000 articles on the Hungarian Knowledge (XXG) (2022)
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  600 000 articles on the Korean Knowledge (XXG) (2022)
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  500 000 articles on the Turkish Knowledge (XXG) (2022)
• 
  2 000 000 articles on the Russian Knowledge (XXG)

• 
  Latvian Knowledge (XXG) logo displayed in memory of the victims of the Zolitūde shopping centre roof collapse (23–26 November 2013)
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  Turkish Knowledge (XXG) logo after being blocked in Turkey (2017)
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  Turkish Knowledge (XXG) logo used during the #WeMissTurkey campaign to lift block of the website in Turkey (2018)
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  The protest on Spanish Knowledge (XXG) against Directive on Copyright in the Digital Single Market (2018)
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  Turkish Knowledge (XXG) logo displayed after the two-year anniversary of the ban, with the message "2 yıldır özlüyoruz" (English: "missing you for two years") (2019)
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  Turkish Knowledge (XXG) logo following the lifting of the block of the website in Turkey with the message "kavuştuk" (English: "reunited") (2020)
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  Day of Remembrance of the Heroes of the 2020 Nagorno-Karabakh war on the Armenian Knowledge (XXG) (2020)
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  The logo of the Ukrainian Knowledge (XXG), used since 4 March 2022, in support of Ukraine and its population, in the Russian invasion of Ukraine
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  Turkish Knowledge (XXG) logo displayed in memory of the victims of 2023 Turkey–Syria earthquake (2023)
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  Arabic Knowledge (XXG) logo displayed in solidarity with the Gaza Strip during the ongoing Israel–Hamas war (2023–present)
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  Additional logo displayed on Arabic Knowledge (XXG) in solidarity with the Gaza Strip during the ongoing Israel-Hamas War, showing the puzzle ball alongside a Palestinian keffiyeh (2023–present)

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  Christmas and New Year at the Russian Knowledge (XXG) (2006–2007, 2007–2008, 2008–2009, 2009–2010, 2011–2012, 2012–2013)
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  National Day of Aragon at the Aragonese Knowledge (XXG) (2008)
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  New Year at the Vietnamese Knowledge (XXG) (2008)
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  National Day of Aragon at the Aragonese Knowledge (XXG) (2009)
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  National Day of Aragon at the Aragonese Knowledge (XXG) (2010)
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  New Year at the Vietnamese Knowledge (XXG) (2010)
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  National Day of Aragon at the Aragonese Knowledge (XXG) (2011)
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  New Year at the Vietnamese Knowledge (XXG) (2012)
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  New Year and 250 000 articles at the Vietnamese Knowledge (XXG) (2012)
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  New Year at the Vietnamese Knowledge (XXG) (2013)
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  Christmas and New Year at the Russian Knowledge (XXG) (2013–2014)
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  New Year at the Vietnamese Knowledge (XXG) (2014)
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  Christmas and New Year at the Russian Knowledge (XXG) (2014–2015, 2015–2016)
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  New Year at the Vietnamese Knowledge (XXG) (2015)
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  New Year at the Vietnamese Knowledge (XXG) (2016)
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  Christmas and New Year at the Russian Knowledge (XXG) (2016–2017)
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  New Year at the Vietnamese Knowledge (XXG) (2017)
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  Christmas and New Year at the Russian Knowledge (XXG) (2017–2018)
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  New Year at the Vietnamese Knowledge (XXG) (2018)
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  Christmas and New Year at the Armenian Knowledge (XXG) (2018–2019)
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  Christmas and New Year at the Russian Knowledge (XXG) (2018–2019, 2021–2022)
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  New Year at the Vietnamese Knowledge (XXG) (2019)
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  Christmas and New Year at the Russian Knowledge (XXG) (2019–2020)
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  Christmas and New Year at the Armenian Knowledge (XXG) (2019–2020)
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  New Year at the Vietnamese Knowledge (XXG) (2020)
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  Christmas and New Year at the Russian Knowledge (XXG) (2020–2021)
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  New Year at the Vietnamese Knowledge (XXG) (2021)

• Wikimedia Blog: Knowledge (XXG) in 3D – 3D version of the Knowledge (XXG) logo unveiled; description of the new puzzle globe logo
• Wikimedia Blog: A new look for Knowledge (XXG)
• Knowledge (XXG):Knowledge (XXG) logos

• Knowledge (XXG)
• History of Knowledge (XXG)
• Logos
• Symbols introduced in 2001
• Symbols introduced in 2003
• Symbols introduced in 2010