What historical regions does the city where MA'ADEN's corporate headquarters are located belong to?
Riyadh Riyadh (/rɨˈjɑːd/; Arabic: الرياض‎ ‎ "ar-Riyāḍ" ] ) is the capital and most populous city of Saudi Arabia. It is also the capital of Riyadh Province and belongs to the historical regions of Najd and Al-Yamama. It is situated in the center of the Arabian Peninsula on a large plateau and home to more than six million people.
Aqrabi ‘Aqrabi (Arabic: عقربي‎ ‎ "‘Aqrabī "), or the Aqrabi Sheikhdom (Arabic: مشيخة العقربي‎ ‎ "Mashyakhat al-‘Aqrabī "), was a state in the British Aden Protectorate, the Federation of Arab Emirates of the South, and its successor, the Federation of South Arabia. Its capital was Bir Ahmad. The state was abolished in 1967 with the independence of the People's Republic of South Yemen. The area is now part of the Republic of Yemen.