Property talk:P218

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ISO 639-1 code
2-letter identifier for language or family of languages defined in ISO 639-1 standard

Applicable "stated in" value	ISO 639-1 (Q715516)
Data type	External identifier
Template parameter	|iso1= in en:Template:Infobox language [ Template:Infobox language (Q7217946) ]
Domain	languoid (Q17376908), writing system (Q8192) or spurious language (Q5015649)
Allowed values	[a-z]{2} (2 lowercase letters)
Example	Japanese (Q5287) → ja (RDF) German (Q188) → de (RDF)
Formatter URL	https://id.loc.gov/vocabulary/iso639-1/$1
Tracking: usage	Category:Pages using Wikidata property P218 (Q26250061)
See also	ISO 639-2 code (P219), ISO 639-3 code (P220), ISO 639-5 code (P1798), ISO 639-6 code (P221), IETF language tag (P305)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties Items with no other external identifier Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Database reports/Constraint violations/P218 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 206 Main statement 203 out of 184 (110% complete) 98.5% of uses Qualifier 2 1% of uses Reference 1 0.5% of uses
Search for values

[create Create a translatable help page (preferably in English) for this property to be included here]

Format “[a-z]{2}|”: value must be formatted using this pattern (PCRE syntax). (Help)

List of violations of this constraint: Database reports/Constraint violations/P218#Format, hourly updated report, SPARQL

Type “languoid (Q17376908), writing system (Q8192), spurious language (Q5015649)”: item must contain property “instance of (P31)” with classes “languoid (Q17376908), writing system (Q8192), spurious language (Q5015649)” or their subclasses (defined using subclass of (P279)). (Help)

List of violations of this constraint: Database reports/Constraint violations/P218#Type Q17376908, Q8192, Q5015649, hourly updated report, SPARQL

Distinct values: this property likely contains a value that is different from all other items. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). Known exceptions: Church Slavonic (Q33251), Old Church Slavonic (Q35499), Azerbaijani (Q9292)
List of violations of this constraint: Database reports/Constraint violations/P218#Unique value, SPARQL (every item), SPARQL (by value)

Single value: this property generally contains a single value. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). Known exceptions: Hebrew (Q9288), Yiddish (Q8641), Indonesian (Q9240)
List of violations of this constraint: Database reports/Constraint violations/P218#Single value, SPARQL

Item “ISO 639-2 code (P219)”: Items with this property should also have “ISO 639-2 code (P219)”. (Help)

List of violations of this constraint: Database reports/Constraint violations/P218#Item P219, hourly updated report, search, SPARQL

Item “ISO 639-3 code (P220)”: Items with this property should also have “ISO 639-3 code (P220)”. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). Known exceptions: Bihari (Q135305)
List of violations of this constraint: Database reports/Constraint violations/P218#Item P220, search, SPARQL

Item “IETF language tag (P305)”: Items with this property should also have “IETF language tag (P305)”. (Help)

List of violations of this constraint: Database reports/Constraint violations/P218#Item P305, hourly updated report, search, SPARQL

Qualifiers “start time (P580), end time (P582), reason for deprecated rank (P2241), reason for preferred rank (P7452), latest start date (P8555), earliest date (P1319), earliest end date (P8554), latest date (P1326), nature of statement (P5102)”: this property should be used only with the listed qualifiers. (Help)

List of violations of this constraint: Database reports/Constraint violations/P218#allowed qualifiers, hourly updated report, SPARQL

Conflicts with “instance of (P31): Wikimedia disambiguation page (Q4167410)”: this property must not be used with the listed properties and values. (Help)

List of violations of this constraint: Database reports/Constraint violations/P218#Conflicts with P31, hourly updated report, search, SPARQL

Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P218#Entity types

Scope is as main value (Q54828448): the property must be used by specified way only (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P218#Scope, SPARQL

This property is being used by: ru:Шаблон:Язык ru:Шаблон:Искусственный язык av:Шаблон:МацІ, av:Халип:МацІ ba:Ҡалып:Язык ca:Plantilla:Infotaula de llengua, ca:Plantilla:Infotaula família lingüística, ca:Plantilla:Infotaula llengua ce:Кеп:Мотт hy:Կաղապար:Տեղեկաքարտ Լեզու, hy:Կաղապար:Տեղեկաքարտ Լեզու արւմտ. ia:Patrono:Infobox/typo/languoid, ia:Patrono:Infobox/articulo/lingua incubator:Template:Wp/sjn/Lam nause it:Template:Lingua kk:Үлгі:Тілдер lez:Шаблон:ЧӀал2, lez:Шаблон:ЧӀалан группа tt:Калып:Тел uk:Шаблон:Мова fy:Berjocht:Taaltabel, fy:Berjocht:Universele ynfoboks taal vo:Samafomot:Pükataib eo:Ŝablono:Informkesto lingvo, eo:Ŝablono:Informkesto lingvo/provejo, eo:Ŝablono:Informkesto lingvo/dokumentado, eo:Ŝablono:Informkesto lingva familio/dokumentado voy:fr:Modèle:Info Guide linguistique gu:ઢાંચો:Wikidata Infobox, gu:ઢાંચો:Wikidata Infobox/core inh:Ло:Язык, inh:Ло:Мотт tg:Шаблон:Забон nap:Modello:Lengua az:Şablon:Dil məlumat qutusu el:Πρότυπο:Πληροφορίες γλώσσας ast:Plantía:Idioma d:Template:LongInscription, d:Template:Wikidata Infobox/core commons:Template:Wikidata Infobox/core cy:Nodyn:Wikidata Infobox es:Plantilla:Wikidata Infobox id:Templat:Wikidata infobox, id:Templat:Kotak info Wikidata/inti mw:Template:Wikidata Infobox/core mr:साचा:विकिडाटा माहितीचौकट/core, mr:साचा:विकिडेटा माहितीचौकट/core sa:फलकम्:Wikidata Infobox ur:سانچہ:خانہ معلومات ویکی ڈیٹا/کور, ur:سانچہ:Wikidata Infobox/core fr:Modèle:Infobox Langue ang:Bysen:Cyþþubox sprǣc q:fr:Modèle:Wikidata Infobox/core diq:Şablon:Infobox language, diq:Şablon:Zıwan, diq:Şablon:Zıwani de:Vorlage:Wikidata Infobox/core ta:வார்ப்புரு:Wikidata Infobox/core hi:साँचा:Wikidata Infobox/core sv:Mall:Wikidata Infobox/core vec:Modèl:Łengoa, vec:Modèl:Infobox de Łéngua, vec:Modeło:Infobox de Łéngua s:zh:Template:Wikidata Infobox/core ckb:داڕێژە:Wikidata Infobox/core myv:ЛопаПарцун:Кель be:Шаблон:Картка:Мова pt:Predefinição:Wikidata Infobox/core sc:Template:Limba ku:Şablon:Wikidata Infobox/core lij:Template:Léngoa mnw:ထာမ်ပလိက်:Wikidata Infobox/core cs:Šablona:Infobox - jazyk tyv:Майык:Дыл mdf:Шаблон:Кяль zh-yue:Template:維基數據語言明細 no:Mal:Wikidata Infobox/core s:ban:Mal:Wikidata Infobox/core ban:Mal:Wikidata Infobox/core uz:Andoza:Til bilgiqutisi ga:Teimpléad:WD Bosca Sonraí Teanga lv:Veidne:Wikidata Infobox/core be-x-old:Шаблён:Інфармацыя пра мову roa-tara:Template:Lingua, roa-tara:Template:Lènga mzn:شابلون:صندخ/زوون voy:shn:ထႅမ်းပလဵတ်ႉ:Wikidata Infobox s:hi:साँचा:Wikidata Infobox/core be-tarask:Шаблён:Інфармацыя пра мову yue:Template:維基數據語言明細 kaa:Úlgi:Til maǵqutısı mhr:Кышкар:Йылме os:Хуызæг:Æвзаг Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)

Main type (GND)

As this property has been deprecated, checking for it is plain stupid. STOP. GerardM (talk) 05:24, 31 October 2013 (UTC)

constraint report relating to Wikimedia disambiguation page (Q4167410)

If instance of (P31) is a Wikimedia disambiguation page (Q4167410) the presence of ISO 639-1 code (P218) is prohibited.

see: Wikimedia disambiguation page (Q4167410) with ISO 639-1 (P218) gangLeri לערי ריינהארט (talk) 15:06, 19 May 2014 (UTC)

Added a constraint for this. Mbch331 (talk) 20:53, 1 September 2015 (UTC)

Some ISO 639-1 don't have a ISO 639-3 code

Check Bihari. It only has 639-1, 639-2 and 639-5. But since ISO 639-3 code (P220) is mandatory, I can't add an exception. So how to solve this? ISO 639-3 code (P220) no longer mandatory? Any collective language doesn't have a 639-3. Mbch331 (talk) 20:53, 1 September 2015 (UTC)

mo is discontinued as well. I18n (talk) 16:16, 10 January 2016 (UTC)

Wikipedias, wikinews and other wiki-sites

https://www.wikidata.org/?curid=14546815#WMF_projects links here

Hello, @I18n: are we really need to copy this property from Corsican (Q33111) to Corsican Wikipedia (Q3111179) for example? This code can be queried throw language of work or name (P407) property. Also item Corsican Wikipedia (Q3111179) have very similar property Wikimedia language code (P424). — Ivan A. Krestinin (talk) 16:08, 10 January 2016 (UTC)

Thanks Ivan for your feedback! When I started adding the properties three or four day ago I did not notice that they will break the constraints which is very embarassing. I do not know sophisticated queries to make a list of four letter ISO 15924 scripts and / or the ISO 639-1 / ISO 639-3 corresponding / approximation table. It is also of major importance to have an actual overview about the script directionality of the WMF projects.

Some users have proposed to start a discussion at the five properties involved ( P218, P219, P220, P506 and P1406 ) in order to expand the domain of usage for them. There are around 800 WMF projects and they have a major involvement in what we are doing here at wikidata. For some of us it might be legitimate to expand the domain of usage because the statements can be simplified i. e. the presence of the Wikimedia database name (P1800) property will mark all these "exceptions".

As an answer to your question about duplicating conten. I am not skilled to make dependency queries. The inserted datas might be selfevident for humans like us but they are not available straight forward for computers. I have seen the property owned by ( P127 ) with the same value everywhere; the same was with the property licence ( P275 ). Is this an economic approach? The values I inserted where different.

I was absent for a while and do not know how to managea formal discussion / poll. Could you please start it? Thanks in advance! Regards Gangleri also aka I18n (talk) 16:50, 10 January 2016 (UTC)

P.S.

1. One idea was to generate output as can be found at Wikidata:Database reports/WMF projects. This assumes that the used query gets access to the property values. There are 384 items; many without values for the table..
2. I am not sure if the usage of qualifiers at items as Sanskrit Wikisource (Q15156667) should be used beside firt level usage of the language of work or name (P407) property at other items from the list. Where are the most actual rules about the usage of qualifiers?

Regards I18n (talk) 19:27, 10 January 2016 (UTC)

Wikimedia projects does not have direct relation with ISO 639-1 codes as I know. The projects have own identifiers system. It is represented using Wikimedia language code (P424) and Wikimedia database name (P1800) properties. ISO 639-1 describes languages. So claim Corsican Wikipedia (Q3111179) <ISO 639-1 code (P218)> co is looked as assumed. Report Wikidata:Database reports/WMF projects can be generated using something like this query. — Ivan A. Krestinin (talk) 21:10, 10 January 2016 (UTC)

Thanks Ivan for this query. Is it possible to add the ISO 15924 value as well? Is it possible to get a more human readable output as "wd:Q7333457" replaced by "RTL" and "wd:Q17321844" replaced by "LTR"? I mean a simple substitution.

note: The link to the query is https://www.wikidata.org/?curid=14546815#WMF_projects_query_01 .

Best regards I18n (talk) 23:25, 10 January 2016 (UTC)

Updated query: [1]. — Ivan A. Krestinin (talk) 08:15, 11 January 2016 (UTC)

FYI: m:Special language codes and w:en:Wikimedia project#Language_codes lists the WMF projects with Wikimedia language codes which are not related to the language code of the content language. Is there a general purpose comment /notes property available which could host these information. An extra column using the {{references}} technique might be helpfull. I18n (talk) 00:52, 11 January 2016 (UTC)

I added an introduction at Wikidata:Database_reports/WMF_projects. Don't hesitate to correct/improve/expand it.
--- Jura 10:41, 11 January 2016 (UTC)

Thank you, I fix the query according your description: [2]. Can we remove ISO-codes from Wikipedias items now? — Ivan A. Krestinin (talk) 11:08, 11 January 2016 (UTC)

whats next?

Thanks Jura, Ivan, Infovarius, Nikki, Srittau, Romaine, Jon Harald Søby for your contributions!

re: presence of ISO 639-1 code (P218), ISO 639-2 code (P219), ISO 639-3 code (P220), ISO 15924 alpha-4 code (P506) and script directionality (P1406) at items with Wikimedia database name (P1800)

1. deprecated projects as Klingon Wikipedia, Siberian Wikipedia should have P1800 set to no value
2. at every item language of work or name (P407) is present as a statement not as a qualifier
   1. multilanguage projects as commonswiki, metawiki, www.wikisource should have the P407 set to no value
3. two pages m:Special language codes and w:en:Wikimedia project#Language_codes relate to uncommon usage of Wikimedia language codes with regards to ISO-639 values; for a transition time these items may have / preserve statements ISO 639-1 code (P218), ISO 639-2 code (P219), ISO 639-3 code (P220), ISO 15924 alpha-4 code (P506) and script directionality (P1406); they should be added to the exception list of the related properties
4. ISO 639-1 code (P218), ISO 639-2 code (P219), ISO 639-3 code (P220) should be deleted at all other items; ar might be an exception as there both ara nd arb can be used
5. ISO 15924 alpha-4 code (P506) and script directionality (P1406) should be removed only if they are present or added to the relvant writing system / script for the language
   1. ku is an exception because for this language family there are both a Latin/LTR and an Arab/RTL project
   2. one language has two projects because the Northern and the Southern languages are covered by one article at w:en (details: Azerbaijani (Q9292)    is both the language of Azerbaijani Wikipedia (Q58251)    AND of South Azerbaijani Wikipedia (Q20789766)    )
   3. zza (inserted earlier as P220 value) is/was wrong because the real language name gets lost in Wikidata because the North/South prefix was cut of the Wikidata label (details; Zazaki Wikipedia (Q38288)    has Wikimedia language code diq. Please compare with Zazaki (Q10199)    and the corresponding aricle w:en:Zaza language where you find "diq – Dimli (Southern Zaza)".) added by I18n (talk) 14:01, 17 January 2016 (UTC)

I hope this is a good start for comments and if we all agree we migth delete / remove the fault statements. Best regards Gangleri also aka I18n (talk) 00:07, 12 January 2016 (UTC)

please answer below

@i18n: This sounds good to me. 😊 Jon Harald Søby (talk) 10:34, 12 January 2016 (UTC)

Instead of setting Wikimedia database name (P1800) to novalue for deprecated projects, I would add end time (P582) as qualifier. --Pasleim (talk) 09:42, 13 January 2016 (UTC)

That makes sense. Do you know where to find those information Pasleim? Could you please add it? I18n (talk) 05:23, 14 January 2016 (UTC)

For Wikidata, language of work or name (P407) should probably be "somevalue" not "novalue". Official language would be "novalue".

I thing that "unknownvalue" is much better then "novalue"; for properties as deprecated/locked/closed/abolished (project, ISO code) etc. where date qualifiers could be used Pfoobar should be used as statement(s). I18n (talk) 05:05, 14 January 2016 (UTC)

Some basic comparative numbers might be interesting to add to the items for the various sites, especially Wikipedia language versions. Maybe an annual article count. But I see you already have made yourself quite an agenda.
--- Jura 13:01, 13 January 2016 (UTC)

If (statistical) counters are polled by the bot they should be added as statements with timestamps. A quaterly statistic would be interesting. Maybe there are some values for past years available somewhere. tbd (to be defined) I18n (talk) 05:05, 14 January 2016 (UTC)

Tomorrow could be a good date for an annual update. This seems a good source.
--- Jura 09:09, 14 January 2016 (UTC)

re: final tables : Should there be Reasonator links? Where to place links as the talk page for English Wikipedia (Q328)? I18n (talk) 05:02, 16 January 2016 (UTC)

There is now a separate table with the language codes and the corresponding Wikidata items: Help:Wikimedia language codes/lists/all
--- Jura 19:46, 28 January 2016 (UTC)

MF chapter pages

soon

inconsistency in subclasses of Wikimedia project

 Who can fix this?

Please compare the following talk pages using {{item documentation}}

1. Talk:Q14827288 at Wikimedia Foundation project (Q14827288)   
2. Talk:Q22001316 at Wikibooks language edition (Q22001316)   
3. Talk:Q20671729 at Wikinews language edition (Q20671729)   
4. Talk:Q22001361 at Wikiquote language edition (Q22001361)   
5. Talk:Q15156455 at Wikisource language edition (Q15156455)   
6. Talk:Q22001390 at Wikiversity language edition (Q22001390)   
7. Talk:Q19826567 at Wikivoyage language edition (Q19826567)   
8. Talk:Q10876391 at Wikipedia language edition (Q10876391)   
9. Talk:Q22001389 at Wiktionary language edition (Q22001389)   

I18n (talk) 14:20, 17 January 2016 (UTC)

help queries and maintenance links

lang=en : ?lang=en&props=31,218,219,220,506,1406&q=claim[1800] – English

lang=nl : ?lang=nl&props=31,218,219,220,506,1406&q=claim[1800] – Nederlands

You should click on the link 51-100 in order to see the English / Dutch labels and transcriptions. Wait a few seconds and click on 1-50. Now you should see the labels and descriptions. Else you wait for ten++ minutes. It's a bug.

All English labels are present. The descriptions are not. Please add them.

For other languages either manualy change the language code in the url or change it via the interface.

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user:I18n/sandbox#property_Wikimedia_database_name provides a lot of search links. You may add the missing statements if you like.

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The final result will be available at project:Database reports/WMF projects. There are more then 384 items with Wikimedia database name (P1800) and a value and three items without value for the deprecated projects. The list is generated by a bot and is not a live result. Probably your changes will be visible only tomorrow.

Regards I18n (talk) 01:03, 12 January 2016 (UTC) / I18n (talk) 05:30, 14 January 2016 (UTC)