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Welcome to Wikidata, 1Veertje!

Wikidata is a free knowledge base that you can edit! It can be read and edited by humans and machines alike and you can go to any item page now and add to this ever-growing database!

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Please remember to sign your messages on talk pages by typing four tildes (~~~~); this will automatically insert your username and the date.

If you have any questions, please ask me on my talk page. If you want to try out editing, you can use the sandbox to try. Once again, welcome, and I hope you quickly feel comfortable here, and become an active editor for Wikidata.

Best regards! Liuxinyu970226 (talk) 11:30, 6 January 2015 (UTC)

Kantongerecht BredaEdit

Hi 1Veertje, Ik zag dat je Kantongerecht Breda ontlinkte uit Q13741314. Kun je me aangeven waarom je het ontlinkte en als het met opzet was: kun je het dan op Wikidata weer toevoegen als eigen item? Alvast bedankt! Romaine (talk) 19:20, 23 September 2018 (UTC)

Het kantongerecht is verhuist naar een nieuw pand en niet meer in een rijksmonument gevestigd. Eigenlijk is er zo veel veranderd aan het object dat het een nieuw item kan krijgen? 1Veertje (talk) 19:33, 23 September 2018 (UTC)
Dan lijkt het me handig twee items te hebben, een voor het oude pand dat rijksmonument is en een voor het nieuwe pand. Dan is splitsen zeker logisch, het is dan wel handig dat er dan een item voor de nieuwe locatie aangemaakt wordt. Wil jij dat doen? Romaine (talk) 21:08, 23 September 2018 (UTC)


Please create a lexeme if you are interested in analysing beyond the current recommendations of Wikidata:WikiProject Names for items about names. Please do not overwrite or replace valid statements. --- Jura 12:48, 12 December 2018 (UTC)


Hi 1Veertje,

I see you have added "subclass of: tree" to several items, like here. I would have hoped that it is obvious that the overwhelming majority of individuals of Fagus sylvatica (>99.9%) are not trees, and never will be trees. They would like to become trees, but die well before they even come close. Of course the ones that do make it are the most notable individuals, but they are the exception.

This is like making "businessperson" a "subclass of: billionaire": most businesspersons would like to become billionaires, but few make it. Of course the ones that do make it are the most notable individuals, but they are the exception.

Best, Brya (talk) 05:02, 28 March 2019 (UTC)

Suggestion for identifierInputEdit

Hej Vera, regarding your identifierInput script, I have a suggestion for another service: Spotify URIs (Spotify artist ID (P1902), Spotify album ID (P2205), Spotify track ID (P2207) & Spotify show ID (P5916)) are required to be written in Wikidata without prefix (spotify:track:…, spotify:album:…, etc.), yet within the Spotify apps, they are displayed with those prefixes. Maybe you want to add this functionality? Cheers, --MB-one (talk) 12:04, 22 August 2019 (UTC)

Provincie aanpassingEdit

Hoi Vera, ik denk niet dat [1] klopt. In Nederland stemmen we per gemeente. Per gemeente stemmen we dan weer voor de gemeente, provincie, landelijk en de waterschappen. Multichill (talk) 21:18, 8 October 2019 (UTC)

maar de senaat wordt gevuld door provinciale verkiezingen en senatoren vertegenwoordigen die provincie in de senaat. Welke provincie dat is moet je toch kunnen definiëren onder "position held" als qualifier van "member of the Senate of the Netherlands" 1Veertje (talk) 21:32, 8 October 2019 (UTC)
De leden van de States-Provincial (Q2097101) kiezen de Senate (Q59486). Senatoren vertegenwoordigen geen provincie, zie nl:Eerste_Kamer_der_Staten-Generaal#Verkiezingen hoe het precies in elkaar steekt. Dus die qualifier is niet correct. Multichill (talk) 20:00, 9 October 2019 (UTC)
@Multichill:Was het vroeger misschien anders? Ik ben met de lijsten van leden van de Staten-Generaal uit 1897-1913 bezig. Daar staat bij elk senator welke provincie ze vertegenwoordigen. Dit is ook de periode dat de Tweede Kamer een districtenstelsel kende zie Districtenstelsel#Nederland. Voor de steden die een subdivisie kende heb ik een Q-items per district aangemaakt. De andere districten heb ik de gelijknamige gemeente genomen. 1Veertje (talk) 20:08, 9 October 2019 (UTC)

New page for cataloguesEdit

Hi, I created a new page for collecting sites that could be added to Mix'n'match and I plan to expand it with the ones that already have scrapers by category. Feel free to expand, use for property creation. Best, --Adam Harangozó (talk) 12:08, 21 October 2019 (UTC)

Q11147030 / Hong sistersEdit

Hello 1Veertje. I am sorry that I had to revert your edits on Q11147030 and Q67171875. In South Korea there are two teams called "Hong sisters" (one: Hong Ji-na and Hong Ja-ram, and other: Hong Jung-eun and Hong Mi-ran), so these data must not merge. In jawp and zhwp, the articles is the ones about both teams and we should not connect them to this data. Regards. --Ohtani tanya (talk) 07:42, 22 February 2020 (UTC)

a, my bad. I thought it was based on the machine translation. the Korean article that was linked to the item is a disambiguation page that should be its own item. 1Veertje (talk) 09:38, 22 February 2020 (UTC)

Onze Musici (1911) (Q71545438):Edit

Ter Info: Voor dit boek heb ik een artikel op de nl aangemaakt (nog wel een hoop rood),Ceescamel (talk) 16:05, 24 February 2020 (UTC)

Have I told you lately you're a genius?Edit

Just installed the IdentifierInput script after seeing it as Tool of the Week- it's brilliant! It just works, what it says on the tin, right out of the box. This will delay my inevitable carpal tunnel syndrome by months, thanks a million! Moebeus (talk) 16:33, 30 March 2020 (UTC)

you're welcome. It has saved me a lot of hassle as well. Would you believe I edit Wikidata items on my phone? It allows me to copy a bunch of URLs from a search result to my clipboard which SwiftKey (Q7655988) then allows me to reference one after the other in the clipboard history. Putting them in without my script would be so so strenuous. 1Veertje (talk) 16:49, 30 March 2020 (UTC)

identifierInput: Event handler called multiple timesEdit

Hello 1Veertje,

thank you very much for creating identifierInput.js, it's a great and incredibly useful gadget. However, I noticed that under certain circumstances it can lead to a very high number of AJAX-calls to the SPARQL endpoint. While not necessarily putting more strain on the Wikidata Query Service due to caching it still can cause noticeable slow downs in the browser.

As far as I can tell the main problem lies in how .bind("DOMSubtreeModified") is used:
When clicking on "add statement" in the user interface DOMSubtreeModified is fired multiple times meaning $($('.valueview-input')[0]).on( "input", ... is executed multiple times too, thus adding the same input-event handler   times (in some circumstances this   can get greater than 100). Now as soon as the user types something into that input field, for each key stroke the previously added input-event handler is called  -times, meaning the SPARQL endpoint is called   times too. This gets especially troublesome when clicking on "add statement" multiple times since even more event handlers are bound to the first input field.

I've prepared two solutions and one additional improvement: My first proposal would be to move the currently anonymous event handler for DOMSubtreeModified to a named function and unbind it every time before it's bound to the input field, effectively making sure that it's always bound only once. This is not exactly beautiful but it works. My second proposal would be to replace DOMSubtreeModified by a MutationObserver since DOMSubtreeModified is deprecated. Since MutationObserver bundles multiple DOM changes into one single call of the callback this also has the positive effect of decreasing the number of calls of the input-event unbinding and rebinding. My third proposal additionally adds support for having more than one input field open at a time. I'd be very happy if you could adopt one of my proposals. --Nw520 (talk) 21:06, 13 April 2020 (UTC)

I did try to stop it from doing that when I first built it, failed to come up with a solution but then it also worked without one so I started using it because I was eager to work without he pain of having to do this manually and then sort of forgot about it 😦. I'll try to take a look at this tomorrow and probably will implement it. 1Veertje (talk) 22:04, 13 April 2020 (UTC)
Thank you for fixing my code. The Wikidata servers will also like that they're not needlessly overburdened, especially now that more people have started using this code. I'm now going to look into making a more elegant solution than the growing aray of websites that something like website.com/Optional-Label/123455 as their URL-format. 1Veertje (talk) 16:49, 14 April 2020 (UTC)
Again, thank you very much. Your gadget really has saved me a lot of repetitive clicks and key strokes so I'm very much looking forward to seeing this gadget getting even better.   --Nw520 (talk) 17:27, 14 April 2020 (UTC)

Q84569939, wikidata terugdraai actieEdit

Beste Vera,

Hans Teunis (Hans Teunis (Q84569939)) is een collega van mij, die ik onlangs nog gesproken heb. Hij vertelde dat zijn geboorte jaar verkeerd is opgenomen in het Tubantia artikel. Daarom heb ik geboortejaar gecorrigeerd en foutieve bron verwijderd. Hans probeert zo veel mogelijk weg te blijven op Social Media en daarom heb ik geen andere openbare bron voor zijn geboortejaar gevonden. Ik stel voor dat we het geboortejaar geheel verwijderen, tot er een goede openbare bron te vinden is. Er staan al een hoop andere gegevens over Hans in het record. Kan je het hiermee vinden? mvg, Gerald. --Gewild (talk) 07:28, 18 April 2020 (UTC)

ik stel voor dat we niet aan oorspronkelijk onderzoek doen en het laten staan zoals het was. Hij kan contact opnemen met Tubantia om het recht te laten zetten. 1Veertje (talk) 08:09, 18 April 2020 (UTC)
Dag Vera, het betreft een detail in een artikel uit 2018, bovendien is geboortejaar nu wel correct. Laat dus maar staan zo. groeten van --Gewild (talk) 18:35, 18 April 2020 (UTC)
Ik heb het weer teruggezet met nog wat extra parameters. Als iemand in september 2018 29 jaar oud is kan het inderdaad zo zijn dat die persoon in 1988 geboren is, maar de kans is groter dat het '89 is. Als we ons baseren op openbare secundaire bronnen (en niet op sociale media / iemand die wat roept op Wikidata) is de schatting dus circa '89. --1Veertje (talk) 11:46, 19 April 2020 (UTC)


Hi, I tried using your user script but it wasn't able to add a 22-digit VIAF ID correctly. Would you be able to fix the processing function so that it accepts all VIAF IDs? Jc86035 (talk) 11:00, 2 May 2020 (UTC)

I did a quick fix. A more elegant solution would be to order the groups in possible matches from big to small so that the longest match wins out. May do that some day but not now. --1Veertje (talk) 13:06, 2 May 2020 (UTC)

Same personEdit

Hello 1Veertje, you got a message here. Cheers -- MovieFex (talk) 14:23, 7 May 2020 (UTC)

In future please consult Help:Merge on how to merge items. You too can do this. --1Veertje (talk) 14:35, 7 May 2020 (UTC)
Thanks for that advice, but I haven't got a problem merging here, the problem was because of 2 commons categories. -- MovieFex (talk) 15:56, 7 May 2020 (UTC)
the trick is that you need to remove the link to Commons from the item you want to turn into a redirect (the newer one). On Commons the photos need to be moved to the remaining category and the deprecated label turned into a redirect with the category redirect template. 1Veertje (talk) 16:10, 7 May 2020 (UTC)
I know if I had removed the commons link that merge of the data objects would have been possible, but I didn't know how to merge or creating a redirect on commons. If I only would have removed that link this category wouldn't have been involved. So I informed the creater. Quite simple. -- MovieFex (talk) 16:38, 7 May 2020 (UTC)
the gadget cat-a-lot makes it easier to move files in between categories on Commons. There is a button underneath the wikitext editor that inserts {{Category redirect|preffered name}}1Veertje (talk) 16:59, 7 May 2020 (UTC)
Ok, next time I know. -- MovieFex (talk) 17:06, 7 May 2020 (UTC)

New OrleansEdit

I've reverted the changes to 2020 COVID-19 pandemic in New Orleans (Q93640245) and 2020 COVID-19 pandemic in New Orleans (Q94112794), because Orleans Parish is merely another name for New Orleans. There is no geographical or governmental distinction between the two, so there can't be a distinct pandemic in either one. – Minh Nguyễn 💬 17:52, 30 May 2020 (UTC)

I thought confusion had arisen because for some reason OpenRefine hadn't finished its job and added all the items representing the parishes of Louisiana as a part of Louisiana. I'd told it to do that twice already but for somehow it needed to be told a third time. 1Veertje (talk) 08:48, 31 May 2020 (UTC)

A barnstar for youEdit

  The Wikidata Barnstar
I'm giving you this barnstar for all your hard work creating thousands of COVID-19 items. ミラP 23:33, 30 May 2020 (UTC)

Since you've contributed so much to this project, I was wondering if you could consider doing an WD:RFA to become an admin (just like on Commons) in the near future? ミラP 23:43, 30 May 2020 (UTC)

Dirk Haspels (Q88388565)Edit

Hallo Veertje, misschien kan je deze of gene verwijderen vanwege Dirk Haspels (Q4000373), dubbel gebruik? Thanks. Lotje (talk) 08:48, 1 July 2020 (UTC)

Het verwijderen van items (tenzij privacyschending) is niet de bedoeling. Er kunnen systemen zijn die nog naar deze persoon verwijzen met het oude nummer (zoals de foto's op Commons). Dan is het zaak dat er een redirect is naar het eigenlijke nummer. Waarom de merge die jij deed dat niet heeft gedaan is wat raar. --1Veertje (talk) 08:58, 1 July 2020 (UTC)

Harmanus Fock (Q21289065)Edit

Only me again... ook met Harmanus Fock (Q22092354) lijkt er een probleempje. :-) Lotje (talk) 09:13, 1 July 2020 (UTC)

Bij Special:Preferences#Gadgets staat er bovenaan de lijst een gadget die mergen makkelijk maakt. Daar heb je mij niet voor nodig. --1Veertje (talk) 09:18, 1 July 2020 (UTC)

New OpenRefine reconciliation serviceEdit


Thank you for wearing the {{User loves OpenRefine}} on your user page!

Because the existing Wikidata reconciliation service has had painful performance issues recently, I have created a new one which should be faster and more robust. You can add it to OpenRefine in the reconciliation dialog with the following URL: https://wikidata.reconci.link/en/api (or by replacing en by any other language code).

If you have any issues with this new service, let me know.

Happy reconciling! − Pintoch (talk) 15:44, 20 July 2020 (UTC)

Jeannette Belinfante (Q71738353)Edit

Beste Veertje; ik heb op de nl Jeannette Mossel - Belinfante aangemaakt en op data gekoppeld aan Jeannette Belinfante Q71738353. Ze is eigenlijk alleen bekend onder haar getrouwde naam. Ook haar overlijdensadvertentie is opgesteld op Mossel-Belinfante. Vervelend was dat de vier muziekgidsen waarin ze vermeld wordt allemaal verkeerde geboortedata, overlijdensplaatsen en data hebben. Ik heb het gecorrigeerd met de mededeling dat er aktes van geboorte en overlijden geraadpleegd zijn en een noot in het artikel. Tweede naam van Jeannette was Esther, geen idee hoe ik dat moet verwerken. Hoe zij op data vermeld wordt, laat ik aan jou over, ze is er nu in ieder geval!Ceescamel (talk) 11:28, 12 November 2020 (UTC)

Feedback on person creation toolEdit

Hi 1Veertje,

Nice tool. Thanks for making it.

There are a few minor points about the P735/P734 discussed at Topic:W0moenvrf9pehe46 (not sure if you got the pings).

Best wishes for 2021. --- Jura 14:59, 1 January 2021 (UTC)

Given nameEdit

Carefully. You added a Greek given name. [2] [3] Data Gamer play 15:53, 1 January 2021 (UTC)