Płock, Czersk i Radom – badania „millenijne” i prace weryfikacyjne

Archaeological research in Płock, Radom and Czersk was connected with a project carried out to honour the Millennium of the Polish State. This paper presents the results of the millennial studies as well as recent verification research that allowed to correct the dating of the beginnings of the settlement complexes. It also verified the vision of vast „early urban settlements” adjacent to strongholds that appeared as a result of the millennial studies. Settlement complexes in Płock, Radom and Czersk can be defined as typical mid-level early Piast centres of power that were developing from the early 11th century and were replaced in 14th century by castles and incorporated towns.