Topological map around modern Switzerland about ancient <a href="https://en.wikipedia.org/wiki/Celts" class="extiw" title="w:Celts">Celtic</a> tribe <a href="https://en.wikipedia.org/wiki/Helvetii" class="extiw" title="w:Helvetii">Helvetii</a> in <a href="https://en.wikipedia.org/wiki/Julius_Caesar" class="extiw" title="w:Julius Caesar">Julius Caesar</a>'s <a href="https://en.wikipedia.org/wiki/Commentarii_de_Bello_Gallico" class="extiw" title="w:Commentarii de Bello Gallico">Commentarii de Bello Gallico</a>
<a href="//commons.wikimedia.org/wiki/User:Linguae" title="User:Linguae">Linguae</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span> based on <a href="//commons.wikimedia.org/wiki/File:Rheinsystem_small_blanco.jpg" title="File:Rheinsystem small blanco.jpg">File:Rheinsystem small blanco.jpg</a>