"Following World War I and the dissolution of the Ottoman Empire, the UK received a mandate to govern much of the Middle East. Britain separated out a semi-autonomous region of Transjordan from Palestine in the early 1920s, and the area gained its independence in 1946; it adopted the name of Jordan in 1950."
Source:
https://www.cia.gov/library/publications/the-world-factbook/geos/jo.html
Try again bub
since this is only your 42nd post here at JREF, and you are clearly quite young, I will be gentle with you in my reply.
The original borders set up for the Palestine Mandate after the conquest of the Ottoman Empire was very very large..and very very arbitrary. It included the Negev desert (not part of historic Palestine) and what we now call Jordan..stretching a good thousand miles east....to the arbitrary borders set up for what we now call Iraq.
Historic Palestine, is roughly from the Med. Sea to the Jordan river (and maybe about 20 miles east of that...and from the Litani river in Lebanon to about the latitude of Gaza City.
According to the Jewish Encyclopedia published between 1901-1906:
Palestine extends, from 31° to 33° 20′ N. latitude. Its southwest point (at Raphia = Tell Rifaḥ, southwest of Gaza) is about 34° 15′ E. longitude, and its northwest point (mouth of the Liṭani) is at 35° 15′ E. longitude, while the course of the Jordan reaches 35° 35′ to the east. The west-Jordan country has, consequently, a length of about 150 English miles from north to south, and a breadth of about 23 miles at the north and 80 miles at the south. The area of this region, as measured by the surveyors of the English Palestine Exploration Fund, is about 6,040 square miles. The east-Jordan district is now being surveyed by the German Palästina-Verein, and although the work is not yet completed, its area may be estimated at 4,000 square miles. This entire region, as stated above, was not occupied exclusively by the Israelites, for the plain along the coast in the south belonged to the Philistines, and that in the north to the Phenicians, while in the east-Jordan country the Israelitic possessions never extended farther than the Arnon (Wadi al-Mujib) in the south, nor did the Israelites ever settle in the most northerly and easterly portions of the plain of Bashan. To-day the number of inhabitants does not exceed 650,000. Palestine, and especially the Israelitic state, covered, therefore, a very small area, approximating that of the state of Vermont.
[4]
Remember, the borders used by the Allies after WW1 were not based on history or culture, but by how best to divide up the spoils for the victorious nations.