Originally created for English Wikipedia by Vardion.
This image has been (or is hereby) released into the public domain by its author, Vardion at the Wikipedia project. This applies worldwide.
In case this is not legally possible: Vardion grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
A vector version of this image (SVG) is available.
It should be used in place of this raster image when superior.