Variant of the <a href="https://en.wikipedia.org/wiki/Taijitu" class="extiw" title="w:Taijitu">Taijitu</a> (太極圖) by from <a href="https://en.wikipedia.org/wiki/Lai_Zhide" class="extiw" title="w:Lai Zhide">Lai Zhi-De</a> (來知德) alias Lai Qu-Tang (來瞿唐) 1525-1604). Black and white swirl around a transparent circle.
<a href="//commons.wikimedia.org/wiki/User:Joey-das-WBF" title="User:Joey-das-WBF">Johannes Rössel</a> (<a href="//commons.wikimedia.org/wiki/User_talk:Joey-das-WBF" title="User talk:Joey-das-WBF"><span class="signature-talk">talk</span></a>)
2010-03-27
<span class="int-own-work" lang="en">Own work</span>, based on <a href="//commons.wikimedia.org/wiki/File:Ancient_version_of_the_Taijitu_by_Lai_Zhi-De.svg" title="File:Ancient version of the Taijitu by Lai Zhi-De.svg">File:Ancient version of the Taijitu by Lai Zhi-De.svg</a> and <a href="//commons.wikimedia.org/wiki/File:Hotu-2.png" title="File:Hotu-2.png">File:Hotu-2.png</a>