Dr. Vladimir Petrović, principal research fellow of the Institute of Contemporary History, on Wednesday, April 20, 2022, gave a lecture “Ethnopolitics Abroad: Changes in the Ethnic Structure of Southwest Banat in the 20th Century”. This is the fourth lecture that was realized in the cycle within the project no. 7731836 The Multiethnic State and National Identities: the Serbian Experience in the 20th Century – SERBIE20, funded by the Science Fund of the Republic of Serbia within the ”Ideas” program.