Question: when was oman given the official name sultanate of oman
Answer: ym Omani Government Unitary parliamentary absolute monarchy Sultan Qaboos bin Said al Said Deputy Prime Minister Fahd bin Mahmoud al Said Legislature Parliament Upper house Council of State ( Majlis al - Dawla ) Lower house Consultative Assembly ( Majlis al - Shura ) Establishment The Azd tribe migration 130 Al - Julanda 629 Imamate established 751 Nabhani dynasty 1145 Yaruba dynasty 1624 House of Al Said 1744 Muscat and Oman 8 January 1820 Dhofar Rebellion 9 June 1965 -- 11 December 1975 Sultanate of Oman 9 August 1970 Admitted to the United Nations 7 October 1971 Current constitution 6 November 1996 Area Total 309,500 km ( 119,500 sq mi ) ( 70th ) Water ( % ) negligible Population 2016 estimate 4,424,762 ( 125th ) 2010 census 2,773,479 Density 15 / km ( 38.