Mandatory Palestine was an artificial creation of the British, which existed less than 30 years. For the 400 years before that, it was part of a single Ottoman province along with what is now Syria and Jordan (except for Jerusalem which was split off into a separate distinct in 1872).
Talking about “how much of Mandatory Palestine the Arabs got” is contrived, when it was just a part of a much larger Arab territory under the Ottomans, and was planned to be part of a much larger Arab territory after the Ottomans.
Talking about “how much of Mandatory Palestine the Arabs got” is contrived, when it was just a part of a much larger Arab territory under the Ottomans, and was planned to be part of a much larger Arab territory after the Ottomans.