and had nothing to do with the Ancylus Lake. Svea River was finally dismissed in 1981 when potholes there were found to predate the lake. The demise of Svea River led authors in the late 1970s and 1980s to revisit the idea that the fresh-water Ancylus Lake was at sea level. Further studies confirmed then that Vänern was part of the lake and that it was above sea level, dismissing the idea of a sea-level lake a second time. References History of the Baltic Sea Prehistoric Europe Former lakes of Europe Proglacial lakes 8th millennium BC 7th millennium BC