Question: The British Mandate for Palestine was finally confirmed in 1922, the civil Mandate administration was formalized with the League of Nations' consent in 1923 following the ratification of which peace treaty signed in Palais de Rumine?
Sentence (from "Mandatory Palestine"): During its existence the territory was known simply as "Palestine", but, in later years, a variety of other names and descriptors have been used, including "Mandatory" or Mandate Palestine, the British Mandate of Palestine and British Palestine.
Relevant evidence: No