If maintaining that mention of "the Lord" in the equivalent of a date stamp = a specific mention of Jesus makes you feel better, so be it. Honestly, I have bigger fish to fry.
It has nothing to do with making me "feel better", it has to do with pushing back against wrong understandings of US History. Too much stuff gets repeated that is not true.
You want to pass this off as a "date stamp" without addressing the degree to which Christianity suffused the entire culture, and thereby creating such a Christian based "date stamp."
Why do we have such a date stamp? Because everything was axiomatically presumed to focus on Christianity as the center of the culture.