Yes, I do mean that Americans were Christians - fully 98% of them. I do not mean that our govt. was a theocracy. The Founders purposefully established a civil government, but one that is grounded in judeo-christian moral principles and laws. This can clearly be seen in their reliance on Christian thinkers like Locke ("life, liberty and property"), Blackstone (God is the ultimate lawgiver), and Montesquieu (separation of powers). It can also be seen in their writings and speeches, and at the Constitutional Convention in 1787 when they prayed for hours (to Allah? nope) for God's guidance and wisdom (do deeists do that? nope).
I find it sad and infuriating that public schools (even universities!) are teaching kids that our founders were diests - this is a bald-faced lie and the evidence is overwhelming that it is a lie.