
Wikipedia had a series oflogos in its history before arriving at the current puzzle ball logo.

Wikipedia's first true logo was an image that was originally submitted byBjørn Smestad[1] for aNupedia logo competition which took place in 2000.[2] It continued to be used after this time on Special Pages, such as search results.
The logo included a quote from thepreface of the 1879 bookEuclid and his Modern Rivals byLewis Carroll; due to thefisheye effect, only part of the text can be read:
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 usuallyaffect, 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 essencetoo serious to admit of any lightness of treatment – butI 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, Wikipedians begansuggesting new logos. Ashort list of 24 leading candidates was chosen in the first Wikipedia logo contest, which took place from November to December 2001. The winner was the last logo (#24), contributed byThe Cunctator.
The logo included the following quote, taken fromThomas Hobbes's 1651 bookLeviathan,Part I, Chapter VI:
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.
Because of its English text, this logo was not ideal for the Wikipedias in other languages. Some wikis chose a similar design with text in their own languages (e.g. theDutch Wikipedia that used a text from the classic bookMax Havelaar). Others used the English logo but added the color of a national flag (most of theNordic language projects,Danish, for example) or simply a translation of "The Free Encyclopedia" (e.g.German). Still others designed a completely different logo (e.g. theFrench Wikipedia).

Following asuggestion byErik Möller, anInternational logo contest was conducted to find a new logo that was suitable for all languages. After a two-stage vote, a design byPaul Stansifer (at the time known asPaullusmagnus) won with considerable support. TheEnglish Wikipedia switched to it on September 26, 2003.
Stansifer's logo depicted a puzzle globe constructed of puzzle pieces, of multiple colors. Covered by text with links, the logo was to symbolize the continuous construction and development of the project. The logo was made inPOV-Ray, using apuzzle image wrapped around a sphere. (To view the original.pov file, seethe file on Meta.)


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 David Friedland's (Nohat)modifications, occasionally referred to as the "silver ball", was soon chosen. The revision of Stansifer's concept removed the color and changed the overlaid text into one letter or symbol per puzzle piece. Both Friedland and Stansifer have assigned copyrights to the logo to theWikimedia Foundation.
Whilst symbolizing a globe the new logo also loosely resembled atypeball as used in someelectric typewriters, a former metaphor for the liberation of the process of professional writing.

There was some controversy over switching the English Wikipedia to this logo for several reasons, one of which was the fact Wikipedia's servers were flickering throughout most of the process. Another issue was that the logo was chosen based on number of supporting votes and not the ratio of supporting:opposing votes; this nullified all the opposing votes.
Before being released to all Wikipedias, the logo was lightened up slightly.
After theJohn Seigenthaler, Sr. Wikipedia biography controversy, a column inThe Times[3] insinuated the logo as being a metaphor for the entire project.Rosemary Righter wrote "Just above the omega, at the point where, on human heads, they used to perform frontal lobotomies, bits of the jigsaw are missing."

The puzzle logo includes 16 letters from 16 different alphabets, many of which—but not all—represent a letter from that alphabet that most closely resembles the English "W", as in "Wikipedia". The alphabets represented are as follows:
Armenianini (Ի) | — | — | — |
Khmerlô (ល) | — | JapaneseKatakanawa +small i (ワィ)[4] | Klingonr ()[5] |
Tibetanwa +i (ཝི) | Greekomega oromega+tonos (Ω or Ώ) | LatinW (W) | Arabicyā (ي) |
Devanagariva +i (वि)[6] | Chineseradical 145 (衣/衤)+5 more strokes in 且 (袓) | Cyrillic I orShort I (И or Й)[7] | KoreanHangulwi (위) |
MongolianTodo I (rotated 90 degrees) (ᡅ) | Kannadava +i (ವಿ)[8] | Hebrewresh (ר) | Thaicho ching (ฉ) |
There have, over the years, been suggestions that some of these characters should be changed to reflect the actual spellings of "Wikipedia" in various languages.[9]

In late 2009, the Wikimedia Foundation undertook to fix some errors that had been noted in the design of the puzzle globe. In particular, it did not scale well and some letters appeared distorted.[10] 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 logo was unveiled in May 2010. It is commonly referred to as "v2" or "2.0", since it represents the second (official) version of the puzzle globe logo to be adopted. It features the new 3D rendering of the puzzle globe, with corrected characters (and theKlingon character replaced by aGeʿez character). Thewordmark has been modified from theHoefler Text font to the open-sourceLinux Libertine font, and the subtitle is no longer italicized. The only error is that the Khmer letter "vo+i" is lying on its side instead of being straight. It is most likely that this error will not be fixed.
TheWikimedia blog has more information on the unveiling, and theWMF Wiki has more detailed information on the new logo.
| — | — | — | |||||||
| — | — | — | |||||||
| — | — | — | — | Armenianvev (Վ) | — | — | — | — | — |
| — | — | — | Teluguva +(i) (వి) | Khmervo +i (វិ) | — | Katakanau +small i (ウィ) | Gəʿəzwə (ው) | — | — |
Javanesewa +i (ꦮꦶ) | Gujarativa +i (વિ) | Gothicvinja (𐍅) | LatinE-acute (É) | Bengalishort u (উ) | Greekomega (Ω) | LatinW (W) | Arabicwāw (و) | Gurmukhīvava +sihari (ਵਿ) | Cyrillicya (Я) |
Syriacwāw (ܘ) | Lontaraw +i (ᨓᨗ) | OriyaU (ଉ) | Burmese scriptv +i (ဝီ) | Devanagariva +i (वि) | TraditionalChinese (維) | Cyrillici (И) | Hangul/Chosongulwi (위) | Tānavaavu +(i) (ވި) | Laotianw +i (ວິ) |
Cyrillicve (В) | Glagoliticvědě (Ⰲ) | Malayalamva +short i (വി) | Inuktitutshort u (ᐅ) | Georgianvin (ვ) | Kannadava +(i) (ವಿ) | Hebrewvav (ו) | Thaiwo waen +sara i (วิ) | LatinH (H) | Cyrillicu (У) |
TagalogBaybayinwi (ᜏᜒ) | LatinU (U) | Mongolianwa (ᠸ) | Limbuwa +i (ᤘᤡ) | Cherokeewi (Ꮻ) | Tibetanwa +(i) (ཝི) | Tamilva +(i) (வி) | Sinhalava +i (වි) | LatinA-umlaut (Ä) | Chinese character (典) |
Tai Nüawa (ᥝ) | LatinV (V) | Cyrillicde (Д) | |||||||
Greekpi (Π) | Arabicyāʾ +ʾalif (يا) | Latindotted I (İ) | |||||||

On January 15, 2011, a special logo replaced the standard globe in order to mark the tenth anniversary of Wikipedia's founding. The logo depicts a single jigsaw piece, representing the addition of another piece to the puzzle.

On January 14, 2021, a 4-sectioned logo was used instead of the puzzle globe, in order to mark the 20th anniversary of Wikipedia. The 4 sections depict, from top-to-bottom, left-to-right:
Yellow background, a woman reading a book with the "W" on it, signifying Wikipedia.Blue background, a computer showing a blue screen with a "W" on it, signifying Wikipedia.Red background, a phone showing a blue screen with a "W" on it, signifying Wikipedia.Finally, on green background, the normal Wikipedia globe, in blue, but with most letters aside from the "W" being replaced with various other objects and symbols.
Some users complained about the visual notoriety of the logo which was found to be striking in contrast to the remainder of the Wikipedia site.
On the Czech Wikipedia, a different "cake" logo is shown, with 2, W, O, stuck in the cake.

On January 22, 2021, the previous 20th anniversary logo was replaced with a less striking version, consisting of the normative Wikipedia globe above the text "20 years of Wikipedia - Over One Billion Edits".
The first two versions of the logo were made to resemble a globe by the use of thefish-eye effect.
The third version (puzzle ball logo) was made inPOV-Ray, aray tracing program which generates 2D images from a 3D scene description. Theoriginal 3D scene consisted of a sphere on which apuzzle image was projected, as describedhere. Nohat's version introduced abump map to the setup, to provide 3Drelief and simulate separate puzzle pieces.
Trulytridimensional models have been created in a few variations. One provides each puzzle piece sculpted independently, to allow alternative renderings; Files are available on GitHubin an animated version anda 3D printable version. Additional 3D printable versions are available incommons:Category:STL official Wikimedia logos.
See also the threadWhat is on the back of the logo? at the foundation-l mailing list.
A very large puzzle globe, dubbed theWikiball, featured inWikimania 2007, depicted an approximation of the Wikipedia logo. A smaller version was distributed to the participants. The large ball was dismantled after the closing ceremony, and many participants kept a piece or more of the puzzle.
In 2017, a concrete version of the logo was submerged inLake Sevan to create anartificial reef.[11]