Subject
- Slave trade17
- Military affairs15
- Expenditure14
- Transport infrastructure14
- Foreign affairs11
- Colonial administration10
- Land10
- Internal politics9
- Frontiers6
- Bilateral relations5
- First World War (1914-1918)5
- Military operations5
- Diplomacy4
- Famines4
- Trade (practice)4
- Compensation3
- Courts3
- Finance3
- Military aviation3
- Railways3