By the last quarter of the nineteenth century, these ideas had become traditional elements of American thought regarding national foreign policy. Do they reflect coherence or ambivalence?

Political forces often influence public opinion.

Egyptians i believe did it

It may be written down (as in the united states) or it may be unwritten (as in great britain). this is the 1787 meeting at which the  constitution of the united states  was debated and agreed upon. this was a 1787 meeting called by congress to amend the articles of the confederation.