 The ensuing decisions, most notably the Sykes–Picot Agreement, which created the Mandatory Palestine.In September 1922, Transjordan was formally identified as a subdivision of the Mandate Palestine after the League of Nations approved the British Transjordan memorandum which stated that the Mandate east of the Jordan River would be excluded from all the provisions dealing with Jewish settlement west of the Jordan River.Arab Jordanians are either descended from families and clans who were living in the cities and towns in Transjordan prior to the 1948 war, most notably in the governorates of Jerash, Ajlun, Balqa, Irbid, Madaba, Al Karak, Aqaba, Amman and some other towns in the country, or from the Palestinian families who sought refuge in Jordan in different times in the 20th century, mostly during and after the wars of 1948 and 1967.