Subject
- Slave trade7
- Colonial administration5
- Expenditure5
- Foreign affairs4
- Military affairs4
- Transport infrastructure4
- Trade (practice)3
- Abyssinian Expedition (1867-1868)2
- Arab nationalism2
- Famines2
- First World War (1914-1918)2
- Geographical exploration2
- Intelligence2
- Internal politics2
- Land2
- Public opinion2
- Rebellions2
- Revenue2
- Trade missions2
- Tribal relations2