Events

• Ongoing
  • Wikidata contest for International Museum from May 3-18 2021
• Upcoming
  • OpenStreetMap TW x Wikidata Taiwan Taipei (Q1867) Meetup 2021-05-10
  • Basics about SPARQL queries live on Twitch and in French by Vigneron, May 11 at 18:00 CEST
  • Online Wikidata meetup in Swedish #62, May 16
  • Wikidata Bug triage hour about constraints, May 17
  • COSCUP 2021 Call For Papers now open
  • Wikimedia Taiwan x NCKUHis Digital humanities Wikidata Workshop National Cheng Kung University (Q706708), 2021-05-29 ~ 2021-05-31

Press, articles, blog posts, videos

• Blogs
  • WBStack setting changes, Federated properties, Wikidata entity mapping & more (covering some of the recent UI and setting changes that happened on WBStack in the past months by Addshore
  • Academic ancestor graphs from Wikidata
• Papers
  • Roderic D. M. Page, Wikidata and the Bibliography of Life, doi:10.1101/2021.05.04.442638
  • Friederike Ehrhart, et al. A resource to explore the discovery of rare diseases and their causative genes (Q106708178), doi:10.1038/S41597-021-00905-Y
• Videos
  • SPARQL #Wikidata retour aux bases #3 - YouTube
  • Wikidata, Linked Data… all the data! Knowledge representation for everybody - YouTube
  • Wikidata Nigeria tutorials on YouTube - How to contribute to Wikidata, add statements for streets named after a person
  • SPARQL Wikidata tutorial (in Portuguese) - YouTube
  • LIVE Wikidata editing #42 - YouTube, Facebook

Tool of the week

• User:Nikki/Ranker.js adds a link to the Ranker tool next to every property on an entity page.

Other Noteworthy Stuff

• The Wikibase spring release is now available! This new release is compatible with MediaWiki 1.35 and it contains new features: Federated Properties, WikibaseManifest & Wikibase Pingback.
• May 2021 Query Builder updates: We finished usability testing of new features and incorporated feedback from users including people with visual impairments and RTL languages. It is now possible to query for dates and we're also looking into making the Query Builder discoverable from the Wikidata Query Service.
• Template:Generic queries for filmmakers is a new wikidata template which defines generic SPARQL queries specific for filmmakers.
• Template:Generic queries for occupations is a new wikidata template with generic queries for items of items such as occupations or professions
• Wikimedia Foundation 2021 Board Elections has been announced. Please sign-up as an Election Volunteer if you'd like to support the elections. Election Volunteers serve as a bridge between the Elections Committee, the facilitation team and the movement.

Did you know?

• Newest properties:
  • General datatypes: Digital Atlas of Idaho URL, identifier shared with lexeme, audio transcription
  • External identifiers: MyBIS species ID, Beirut Arab University's Libraries title ID, Gardens of the Roman Empire ID, Ultime lettere di condannati a morte e di deportati della Resistenza italiana person ID, NBM authority ID, MileSplit ID, Mixcloud ID, Forbes (Russia) profile ID, am.hayazg.info ID, bridgesport.ru player ID, APA Dictionary of Psychology entry, The Draft Review ID, Nevada SHPO marker ID, IUCN Green List ID, National Association of Teachers of Singing member ID, Danmarks Tekniske Kulturarv book ID, Auschwitz Prisoners Database ID, Biology Online Biology Dictionary entry, Biblioteca di Santa Sabina ID, Senate of Romania person ID, Chamber of Deputies of Romania person ID, LMIC musician ID, Scholarpedia article ID, Historic Hawai‘i Foundation place ID, Digital Library of Armenian Literature author ID, Den Danske Ordbog article ID, Den Danske Ordbog idiom ID, OpenCorporates register ID, Biblioteche della Custodia di Terra Santa a Gerusalemme ID, IBSF competition ID, SAIA authority ID, Football Association of Norway Club ID, music austria ID, Secondary Archive artist ID
• New property proposals to review:
  • General datatypes: official podcast, Danish redlist ID, Velocity Relative to Earth, athletics program, North Carolina session law
  • External identifiers: vedidk ID, MyBIS protected area ID, COG ID, Badok ID, Biographical Dictionary of Chinese Christianity person ID, DTB-Gerätturner-ID, Encyclopedia of Renaissance Philosophy ID, UK Renewable Energy Planning Database ID, University of Washington Campus Map ID, Australian Music Centre composer ID, Romanian Ministry of Foreign Affairs - diplomatic mission IDs, SOUNZ work ID, Canadian Music Centre Composer Showcase ID, Repositório da Produção USP Person ID, Online Archive of California finding aid ID, SOSBrutalism ID, Microlepidoptera.nl ID, OSDN project, SOR bird ID, Companies Registration Office (Ireland) Registration Number, ToateAnimalele ID, Muziekencyclopedie ID
• Query examples:
  • List of French firms without SIREN id (P1616) ordered by number of sitelinks with search links in annuaire-entreprises‧data‧gouv.fr : the query makes it easy to find the SIREN number (P1616) (source Property talk P1616)
  • Number of works per year by researchers supervised by Lars Kai Hansen (source)
  • Count of sitelinks of Nigerians on Wikidata (Source)
  • 30 largest cities with female mayor (Source)
  • Recent locations of boundary stones in Upper Lusatia (see pictures by clicking on the dots) (Source)
  • Types of items in Australia that don't have identifier properties (Source)

Development

• Omaha-Ponca language is now available for monolingual text properties. (phab:T265296)
• Added a meaningful error message when trying to use Special:EntityData with a Lexeme subentity like L123-F1 in cases where the Lexeme L123 was redirected to another Lexeme (phab:T257494)
• Changed the “type” and “value type” constraints to ignore deprecated values (phab:T170401)
• Working on rendering empty claims in JSON as `claims: {}` instead of `claims: []` phab:T241422)
• Investigating some issues with page_props missing on Commons wiki after adding sitelinks to Commons categories (phab:T280627)
• Removed Google Knowledge Graph Id (P2671) and Wolfram Language entity code (P4839) from the Property Suggestions as they are usually not useful suggestions (phab:T280779)

You can see all open tickets related to Wikidata here. If you want to help, you can also have a look at the tasks needing a volunteer.

Monthly Tasks

• Add labels, in your own language(s), for the new properties listed above.
• Comment on property proposals: all open proposals
• Contribute to a Showcase item.
• Help translate or proofread the interface and documentation pages, in your own language!
• Help merge identical items across Wikimedia projects.
• Help write the next summary!