"Europe, USA" . . "quantification" . "1870-2015" . . "text/csv" . . "primatology" . "Quantified data used for clustering (UTF-8 encoded .csv); compared to the raw data, all continuous variables have been normalized (value*100/no of pages in text); binary variables have been left as is" . "Clustering84Primatografien.csv" . "Jörg Lehmann, ORCID: https://orcid.org/0000-0003-1334-9693" . "ger" . "literary studies" . "CC-BY-3.0-DE" . .