<a href="https://en.wikipedia.org/wiki/Edmond_Halley" class="extiw" title="w:Edmond Halley">Edmond Halley</a> with a diagram showing the multiple shells of his hollow Earth theory.
<bdi><a href="https://en.wikipedia.org/wiki/en:Michael_Dahl" class="extiw" title="w:en:Michael Dahl"><span title="Swedish painter (1659-1743)">Michael Dahl</span></a>
</bdi>
circa 1736 <div style="display: none;">date QS:P571,+1736-00-00T00:00:00Z/9,P1480,Q5727902</div> according to <a rel="nofollow" class="external autonumber" href="http://www.ucl.ac.uk/sts/nk/hollow.htm">[1]</a>
<p><a rel="nofollow" class="external free" href="http://www.ucl.ac.uk/sts/nk/hollow.htm">http://www.ucl.ac.uk/sts/nk/hollow.htm</a>
</p>
originally uploaded on de.wikipedia by <a href="https://de.wikipedia.org/wiki/User:Siffler" class="extiw" title="de:User:Siffler">Siffler</a> (<a href="https://de.wikipedia.org/wiki/User_talk:Siffler" class="extiw" title="de:User talk:Siffler">talk</a><span style="white-space:nowrap"> <b>·</b></span> <a href="https://de.wikipedia.org/wiki/Special:Contributions/Siffler" class="extiw" title="de:Special:Contributions/Siffler">contribs</a>) at 14 January 2007, 17:40. Filename was <a href="https://de.wikipedia.org/wiki/Image:Halleold.jpg" class="extiw" title="de:Image:Halleold.jpg">Halleold.jpg</a>.