Subject
- Transport infrastructure[remove]21
- Expenditure14
- Military affairs14
- Slave trade14
- Foreign affairs11
- Colonial administration10
- Land10
- Internal politics9
- Frontiers6
- Famines4
- Military operations4
- Railways4
- Telegraph lines4
- Courts3
- Finance3
- Abyssinian Expedition (1867-1868)2
- Ottoman reconquest of Eastern Arabia (1871-1873)2
- Revenue2
- Road transport2
- Taxation2