 Of further importance for the chronological attribution of the Pingsdorf Ware was the stratigraphy of the stream bed of the systematic excavations conducted at the Viking settlement of Hedeby on the Schlei from 1930 until 1939.Whilst the Badorf Ware is still present on the latest horizons of the find spot, it expires shortly around or after 900 and gets replaced by Pingsdorf Ware, which is archaeologically evident until the 13th century.However, an exact chronology of single types of vessels was not possible on foundation of the material found at Hedeby.