Subject
- Naval operations6
- Partition6
- Plague6
- Press coverage6
- Railway lines6
- Resources exploration6
- Road transport6
- Salt industry and trade6
- Self government6
- Slavery6
- Statistics6
- Trade disputes6
- Transport6
- Aerial navigation5
- Air force5
- Air transport5
- Bahrain Civil Air Agreement (1934)5
- Civil aircraft5
- Concessions, Oil, Abu Dhabi5
- Concessions, Oil, Muscat5