In this paper, we describe the extraction of all the location entries from a prominent Swedish encyclopedia from the early 20th century, the \textit{Nordisk Familjebok} `Nordic Family Book.' We focused on the second edition called \textit{Uggleupplagan}, which comprises 38 volumes and over 182,000 articles. This makes it one of the most extensive Swedish encyclopedias. Using a classifier, we first determined the category of the entries. We found that approximately 22 percent of them were locations. We applied a named entity recognition to these entries and we linked them to Wikidata. Wikidata enabled us to extract their precise geographic locations resulting in almost 18,000 valid coordinates. We then analyzed the distribution of these locations and the entry selection process. It showed a higher density within Sweden, Germany, and the United Kingdom. The paper sheds light on the selection and representation of geographic information in the \textit{Nordisk Familjebok}, providing insights into historical and societal perspectives. It also paves the way for future investigations into entry selection in different time periods and comparative analyses among various encyclopedias.

本文描述了从20世纪初期的著名瑞典百科全书Nordisk Familjebok（译为“北欧家庭书”）中提取所有位置条目的过程。通过分类器确定了这些条目约22％是位置条目，并应用命名实体识别将它们与Wikidata连接，从而获得了近18,000个有效坐标。通过分析这些位置的分布和条目选择过程，揭示了Nordisk Familjebok中地理信息的选择和表示，为历史和社会观提供了见解，并为进一步研究不同时期入口选择以及各种百科全书的比较分析铺平了道路。

映射过去：通过Wikidata地理链接20世纪早期的瑞典百科全书