It first appeared as an illustration to this story we wrote for Pajamas Media, and then a shorter version of it on the Cube a few days later: The Alternative Secret History of the World.

At first the image had no attribution because we never expected it to be anything more than an illustration. In that form it wound up in Rush Limbaugh's inbox, emailed to him without crediting the source. Rush liked it so much that he described it on his show. Here's a transcript from his site: