Subject
- Treaties39
- Slave trade29
- International relations27
- Concessions, Oil, Bahrain26
- Customs administration21
- Armed forces20
- Boundary disputes20
- Foreign relations20
- Land ownership20
- Military operations20
- Concessions19
- Reports19
- Boundaries18
- Concessions, Oil, Kuwait17
- Pearl industry and trade17
- Petroleum products17
- Trade (practice)17
- Naval operations15
- Financial administration14
- Mining14