I skimmed thru it. It says 'the year of the Lord' was not in the Washington and early drafts. Then Franklin wanted a date and the witnesses to sign. Madison and the convention committee came up with notes for the intro. The final notes had the date then scribbled '&c--- " after it,. They hired a calligraphy guy and the script was written and shown to all and approved and then added. Basically the article sides that how the words got there is meaningless and up to interpretation. Its basic argument is that the Constitution is not a 'Christain manifesto' We all agree with that. It does however give evidence that all, saw it read it and approved the words, before it was added .