Summary.This paper looks at how the process of acculturation can be detected in the archaeological record. It considers the specific case of acculturation in the Upper Rhine during the early Roman period and attempts to demonstrate how archaeological material can be used to evaluate social changes. Various aspects of the pottery assemblage, which relate to different aspects of pottery production and use, are considered such as production technology, style, and form. Many of the changes result from cultural changes which occurred as a result of interaction between the Roman and local peoples. Other works concerning acculturation are reviewed to determine what types of factors are involved in the process. These factors are considered, in relation to the Upper Rhine, in a discussion of the changes in the pottery and how they relate to social changes. Various explanatory models are proposed.