Datasets Wikimedia

This page introduces datasets that are related to KB’s projects and activities on Dutch Wikipedia, Wikimedia Commons and Wikidata. 

For now this page gives access to only two datasets, but more will be added in the future. 

Dataset 1: The usage of Delpher URLs in Dutch Wikipedia articles

Delpher provides access to millions of digitized pages from Dutch historical newspapers, books and magazines. It is a frequently used source in the Dutch Wikipedia. 

This dataset series looks at how often Delpher is referred to in which Wikipedia articles, and which Delpher pages are cited most often. It also shows Dutch Wikipedia articles that are entirely or largely based on Delpher. 

Version 17-01-2025 

Background info 

The first set of data was collected on January 17, 2025. To better understand and visualize this data, please first read the Dutch article The usage of Delpher URLs in Dutch Wikipedia articles, January 2025 on Zenodo or on Github.   

Key figures

• 15,569 distinct Wikipedia articles together contain 45,409 links to 43,063 distinct pages in Delpher.
• These references are mainly to newspapers (38,530 URLs), followed by books (4,923 URLs) and magazines (1872 URLs). - see graphic 1 below.
• The article Lijst van rampen in Nederland (List of disasters in the Netherlands) contains 182 links to Delpher, followed by the article Lijst van historische Nederlandse netnummers (List of historical Dutch area codes), with 175 Delpher URLs. The article about Jacques Anquetil closes the top 3 with 130 references. - see table 1 below.
• If we disregard the Newspapers homepage and the Delpher homepage, the illustration Afstandsaanduidingen langs Rijkswegen (Distance indications along national roads) in the Nieuwe Tilburgsche Courant of 12-02-1937 is referred to most often, namely in 13 Wikipedia articles. In second place is page 2 of the newspaper Suriname of 02-09-1933 with references from 12 articles. - see table 2 below.
• There are 61 Wikipedia articles that are (almost) entirely based on Delpher content. In other words: they owe their existence largely to Delpher. - see table 3 below.

Access to the data

The raw data for this timestamp can be found on Zenodo. See the Excel file WPNLarticlesANdDelpherUrls contained in the Delpher-URL's in Nederlandstalige Wikipedia-artikelen record.

Graphics and tables

Dataset 2: The usage of DBNL URLs in Dutch Wikipedia articles

The Digital Library for Dutch Literature (DBNL) is a frequently used source in the Dutch Wikipedia. This dataset series looks at how often DBNL is referred to in which Wikipedia articles, and which DBNL pages are cited most often. It also shows Dutch Wikipedia articles that are entirely or largely based on DBNL. 

Version 05-09-2024 

Background info

The first set of data was collected on September 5, 2024. To better understand and visualize this data, please first read the Dutch article The usage of DBNL URLs in Dutch Wikipedia articles, September 2024 on Zenodo or on Github.   

Key figures

•  18,458 distinct Wikipedia articles together contain 30,768 links to 27,875 distinct pages in the DBNL.
• These references are mainly to DBNL author pages (16,591 URLs), followed by texts (13,835 URLs) and titles (240 URLs). - see graphic 2 below.
• The article De groote schouburgh der Neder­lantsche konstschilders en schilderessen contains the most links to the DBNL with 442, followed by the article  Schilder-boeck, with 70 DBNL URLs. - see table 4 below.
• The table of contents of the Algemeen letterkundig lexicon is referred to no less than 229 times from Wikipedia, with the PDF of De eerste Surinaamse sportencyclopedie (1893-1988) by Ricky W. Stutgard in second place, with 147 references. - see table 5 below.
• There are 17 Wikipedia articles that were written (almost) entirely based on DBNL content. In other words: they owe their existence largely to the DBNL. - see table 6 below. 

Access to the data

The raw data for this timestamp can be found on Zenodo. See the WPNLarticlesAndDBNLUrls Excel file contained in the DBNL-URL's in Nederlandstalige Wikipedia-artikelen record. 

Graphics and tables