Le lago de Ancylus entre el 7500 y el 6000 a. de C.
<p><a href="//commons.wikimedia.org/wiki/File:Baltic_History_7500-BC.svg" title="File:Baltic History 7500-BC.svg">Baltic History 7500-BC.svg</a>: <a href="//commons.wikimedia.org/wiki/User:Koyos" title="User:Koyos">Koyos</a>
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<ul><li>derivative work: <a href="//commons.wikimedia.org/wiki/User:Rowanwindwhistler" title="User:Rowanwindwhistler">rowanwindwhistler</a> (<a href="//commons.wikimedia.org/wiki/User_talk:Rowanwindwhistler" title="User talk:Rowanwindwhistler">talk</a>)</li></ul>
This file was derived from: <a href="//commons.wikimedia.org/wiki/File:Baltic_History_7500-BC.svg" title="File:Baltic History 7500-BC.svg">Baltic History 7500-BC.svg</a><br>