In 1919, during the Paris Peace Conference, he was among the few who successfully recommended adopting the Arabic name "Iraq", as it had been known for more than 1400 years by Muslim and Arab worlds, instead of the Greek name Mesopotamia which was only used by Westerners.needed This political entity covered the planned northern expansion of the newly created country under the British Mandate to include the oil rich Mosul region of northern Iraq, in addition to the Mesopotamian provinces of Baghdad and Basra.