- A prominent Palestinian lawyer 1933 – 1948.
- First director of the Arab Media Office in Washington in 1945 then Director of the Central Arab Media Office in Jerusalem in 1946.
- Assistant General Secretary for the Arab League and a representative to Syria in the United Nations 1950 - 1957.
- Minister for the United Nations affairs in the Saudi Arabia Government and permanent ambassador for the United Nations 1957 - 1962.
- Representative of Palestine in the Arab League 1963 – 1967.
- Founder and first president of the Palestinian Liberation Organization 1964 – 1967.