Since 1875, with short interruptions, interdisciplinary research of pile-dwellings has been carried out at the Ljubljansko barje. During the last decade and a half these have mostly been done under the leadership of a research group from the Institute of archaeology of ZRC SAZU and in cooperation with the Dendrochronological laboratory of the Department of Wood Science and Technology of the Biotechnical faculty of the University of Ljubljana. This article presents the most important results. We discuss the precise, through dendrochronology and radiocarbon dating supported chronology of pile-dwellings, supported also by archaeological finds. We debate the settlement dynamics, time-spans of pile-dwellings, pile-dwelling settlement ground plans etc. We put emphasis on environmental studies and pile-dwellers economy. We discover that pile-dwellers were skilled metallurgists from at least the second quarter of the 4th millennium on. We discuss the presence of craftsmen-specialists. During field research internationally significant finds have been discovered which testify to the high level of pile-dwellers’ technological development.