Drawing primarily on data obtained from recent excavations at Elmina, Ghana, this report examines the potential use of beads as temporal markers in West African archaeology. It is argued that although beads from West-African contexts are difficult to date, they provide more information than has previously been suggested. The Elmina beads are of particular interest as they can be closely dated by associated European trade materials. Preliminary results from the analysis of the 30,000 European and locally-made glass beads are discussed and findings from other West-African sites are evaluated.