The paper points to new possibilities of inquiry into the ethnogenesis of the population of Serbia, with an accent on the Serbian ethnos. Over the last years, within a global framework, genetic research of origin, genealogies, ethnogenetic and migrational processes have pointed to a wide array of new aspects, by pointing us towards previously unknown ways of viewing the past of different peoples and ethnic groups. The text presents an introductory overview of research that was begun, with basic pointers as to relevant conclusions. Based on our preliminary research and insights, it can be argued that Serbian ethnology gained a new, powerful weapon in the struggle to bring ethnogenetic and migrational processes to light - or rather - in the analysis of the notions about origins and the past (within the context of testing their veracity). [Projekat Ministarstva nauke Republike Srbije, br. 47016: Interdisciplinarno istraživanje kulturnog i jezičkog nasleđa Srbije. Izrada multimedijalnog internet-portala "Pojmovnik srpske kulture"]