Back in 2000, some unsung network graphics specialist had the bright idea of flipping the traditional association of red with the left and blue with the right. On election night that year, when the newscasters began to report voting results, they turned to big maps with Republican majority states colored Che Guevara red while states that went Democratic were awash in Margaret Thatcher blue.
Thus were red states and blue states born, a hue switcheroo that instantly recodified the way Americans perceive themselves and their nation.
If anything, the social and political divisions of 2000 have grown even more stark -- or at least the constant media references to red and blue America have made us increasingly aware of differences that have been in the background for a very long time.
There has always been a divide between city and country, of course. In colonial times, the Dutch-descendant bankers and ship owners of New York were quite distinct from the immigrant Scotsmen in leather leggings and coonskin hats on the Kentucky frontier. Even when almost all Americans were Christians, there was a big contrast between the humanistic Unitarians of New England and the tongues-speaking tent revival Pentecostals below the Mason Dixon line.
Our bloodiest war was fought between ourselves, with one side believing the federal government had the right and duty to hold the country together and ban an evil institution, while the other side resisted federal power over any state that wanted to do things its own way -- even if that way was morally indefensible.
That conflict echoes down through the canyons of history to the present, from the ludicrous show of defiance at Cliven Bundy's ranch to the battles over voting rights in North Carolina and Ohio. The red and blue divide is not unlike the split between blue and gray 150 years ago. The Blue states of the West Coast, the upper Midwest and the Northeast generally support the federal government's role in protecting the environment, keeping corporate power in check and enforcing civil rights. The red states of the South, the lower Midwest and the Mountain West would just as soon be left alone to run things as they see fit without "Washington" interfering.
Maybe the more things change, the more they stay the same.