<div class="fn value">
<a href="//commons.wikimedia.org/wiki/User:Isochrone" title="User:Isochrone">Isochrone</a></div>
CC BY-SA 4.0
<p>Own work  using:
</p>
<ul><li><a class="external text" href="https://en.wikipedia.org/w/index.php?title=Wikipedia:Graphics_Lab/Map_workshop&amp;diff=1081409347">Comment by La lopi at the Graphics Lab</a></li>
<li>All other data made with Natural Earth. Free vector and raster map data @ <a rel="nofollow" class="external free" href="https://www.naturalearthdata.com">https://www.naturalearthdata.com</a>.</li></ul>