Abstract
<jats:p>The Institute for Contemporary History from Belgrade and the Faculty of History (initially the Institute for History and International Relations) of Casimir the Great University from Bydgoszcz have jointly organized annual scientific conferences during the past decade. They were held once a year alternately, one in Poland and the next in Serbia. The topics of each of the eight meetings held were within the framework of the issue of Yugoslav/Serbian and Polish relations in the 20th century. Initially, the research topics ranged within the era of socialism in both countries, from 1945 to 1990. Later, the range of topics expanded to include topics from the period between the two world wars as well as the most modern era. This collection, which is before the readers, brings papers from the scientific meeting held on September 16-17, 2021 in Belgrade. A total of 33 works of participants from the conference were included in the collection. The difference in numbers is due to the fact that some of the participants did not submit papers, while others, who were in the organizing committee, did. In addition to authors from Poland and Serbia, there are also authors from Slovenia and Croatia with their contribution to this topic in the form of articles, but also to provide a kind of "Yugoslav character" to the works in the collection.</jats:p>