Subject
- Second World War (1939-1945)39
- Slave trade34
- Slave emancipation29
- Exports27
- Imports22
- Petroleum industry21
- Concessions, Oil, Bahrain18
- Claims17
- Debt recovery13
- Sovereignty13
- Concessions11
- Concessions, Oil, Qatar11
- Passports11
- Pearl industry and trade11
- State visits11
- Cars10
- Courts10
- Motor vehicles10
- Bilateral relations9
- Etiquette9