From an article in the New York Times about the separation of Church at State (not to be confused with NOFX’s separation of Church and Skate)
The United States has always been home to striking religious diversity — diversity that has by fits and starts expanded over the last 230 years.
Um. The United States is 77 percent Christian (down from 86 percent in 1990.) The world is approximately 33 percent Christian, 21 percent Islamic, 14 percent Hindu, 16 percent non-religious, 6 percent Buddhist, 6 percent Confucianist, etc. I think the correct statement is “the United States has always been home to striking Christian religious diversity.”
For an interesting graphic, check out this geographic picture of religious adherence in the United States. It would be cool to run this through the cartegram software of Michael Gastner, Cosma Shalizi, and Mark Newman.