Israel Matzav posted an interesting little chart which flows from Google Books Ngram Viewer.
The things we can learn!
Editor's note - the captions in yellow read as follows:
There is virtually no talk of a Palestinian people or a Palestinian state for almost 500 years prior to Israel taking the West Bank in self defense.
Talk of a "Palestinian state" and a "Palestinian people" suddenly emerged after Israel took the West bank in 1967 in self-defense. Why? - ML