InternationalSultan Qaboos, Oman Ruler Passes AwayNews DeskJanuary 11, 2020June 7, 2022 by News DeskJanuary 11, 2020June 7, 2022 Sultan Qaboos, who ruled Oman for 49 years, is a longest-reigning Arabian leader. Muscat| Oman ruler and longest-reigning leader of the modern Arab world, Sultan...