“…In order to to make the cedar rdf Database a 5-star Linked Dataset, we issue links as depicted by Figure 3. Concretely, we use expert knowledge to link the census data to: (1) occupations in the the Historical International Standard Classification of Occupations (hisco) ( van Leeuwen, Maas & Miles, 2002); (2) occupations in the iconclass19 system, with alternative occupation descriptions; (3) to historical Dutch municipalities in gemeentegeschiedenis.nl (Zandhuis, den Engelse & Mac Gillavry, 2015), which link to DBpedia, GeoNames, codes of the cbs (Centraal Bureau voor de Statistiek), and codes of the Amsterdamse Code (van der Meer & Boonstra, 2006); and to maritime trade registers of the Dutch Ships and Sailors dataset (de Boer, Leinenga, van Rossum & Hoekstra, 2014).…”