On 25 May 1946, Transjordan became the "Hashemite Kingdom of Transjordan" when the ruling 'Amir' was re-designated as 'King' by the parliament of Transjordan on the day it ratified the Treaty of London.
On May 25, 1946, Transjordan became the "Hashemite Kingdom of Transjordan" after its ruler, the 'Amir', was renamed 'King' by the parliament of Transjordan upon ratifying the Treaty of London.