Geographical traces of the Basque language:
<ul><li>blue: place names</li>
<li>red: epigraphic traces (gravestones...) in the Roman times</li>
<li>blue patch: maximum extension</li></ul>
Information source: <a rel="nofollow" class="external free" href="http://www.erabili.eus/zer_berri/muinetik/dokumentuak/2004/El_Euskera_Arcaico_Extension_y_Parentescos.pdf">http://www.erabili.eus/zer_berri/muinetik/dokumentuak/2004/El_Euskera_Arcaico_Extension_y_Parentescos.pdf</a>
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