Found here: http://imgur.com/gallery/fNeC6ec
Stashed in: Infographics!, Darwin, Favorite and Forget
Compare with the Histomap of History, also by John B. Sparks:
The progressive case against Obama - Salon.com
US entertainment industry to Congress: make it legal for us to deploy rootkits, spyware, ransomware and trojans to attack pirates!
There's more to life than being happy.
Arielle Zuckerberg working at Google