Today the Supreme Court takes up gay marriage. Again. This is, you know, after they decided two years ago that the federal government has to recognise gay marriages when performed in states where it is legal. Anyway, last week, Bloomberg Business looked at the United States preference for changing its mind through a nice series of charts.

They took six key issues, including interracial marriage shown above, and looked at how the position shifted over time. They identified the basic trend as being early adopter states followed by rapid acceptance to a critical mass, at which time the federal government stepped in, e.g. via the Supreme Court.
Credit for the piece goes to Alex Tribou and Keith Collins.