In 1946 the British controlled a large area (including present-day Jordan) of former Turkish territory. There was no country Palestine. It was called the British Mandate of Palestine and was not yet divided into countries. A small piece of subsequently given as a home for the Jews -- Israel -- and a far larger piece was given to the Arabs and called Jordan.
The other maps show the result of territorial gains made during wars started by the Arabs in 1967 and 1973. Israel gave back much of the land conquered from those wars.
I think this is a point that many people either don’t know or just plain ignore: there has ALWAYS been a two-state solution and there is already an Arab state. It’s called JORDAN.