Historical clue formulations

• Muscat residents — 2024-07-29
• Subjects of a certain sultanate — 2021-11-26
• Some sultan subjects — 2018-12-22
• Dwellers on the Arabian Peninsula — 2017-08-20
• Musandam Peninsula populace — 2015-03-28
• Certain sultan's subjects — 2013-12-21
• Rial spenders — 2000-10-15
• Muscateers? — 1997-12-21
• Some Mideasterners — 1995-02-07
• Some Arabs — 1994-09-23