Figure 1
Maps with present-day borders, and a timeline visualising the geographical and chronological distribution of the periodical issues contained in the dataset. Figure created with the DARIAH-DE Geo-browser and datasheet editor (DARIAH-DE, 2021).
Figure 2
An example of a processed page of one of the periodicals in the dataset, Bluszcz: pismo tygodniowe illustrowane dla kobiet [Ivy: Illustrated Weekly Journal for Women], showing page segmentation of regions and words, with the keyword highlighted, in Page Viewer software (PRImA & Clausner, 2019). Shown here is page 120 of the document with ID: NDc2OTEyNDc (Odkrycie, 1866).
Figure 3
An example of the type of analysis that can be conducted using the dataset: BERTopic topic modelling (Grootendorst, 2022). Visualisation of topics found in sections related to petroleum in periodicals in the dataset.