No such people calling themselves Palestinians before 1946. They’re all from trans-Jordan.
All of which was set up by the “geniuses” at the Paris peace talks of 1919. You know, the same socialists that gave the Germans enough of a gripe to bet on Hitler as their savior, the Africans ANOTHER group of legitimate complaints about over-bearing Europeans, and the Americans the income tax and direct election of senators - our first whiff of the Constitution running off the tracks.