High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! The British Mandate for Palestine, also known as the Palestine Mandate and the British Mandate of Palestine, was a legal instrument for the administration of Palestine formally approved by the League of Nations in June 1922, based on a draft by the principal Allied and associated powers after the First World War. The mandate formalised British rule in Palestine from 1917 1948. With the League of Nations' consent, the UK divided the Mandate territory into two administrative areas, Palestine, under direct British rule, and autonomous Transjordan, under the rule of the Hashemite family from Hijaz.