This map was drawn by Professor Joel Garreau in his 1981 book  “The Nine Nations of North America.” Ever since it has been used by marketeers and politicians to get ahold of how North America divides.

“Check out the last few presidential election results at the U.S. county level, and these boundaries still pop right out at you. In Canada, it’s even more striking,” says Garreau today.

But not only is the Nine Nations a map of culture and values, but also a map decribing money, power and influence, “the patterns of which have only deepened.”

Posted in: Infographic of the day