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Subject
- League of Nations160
- Disarmament108
- Finance54
- Economic history51
- Commercial policy45
- Tariff45
- Opium trade44
- Foreign relations42
- Prostitution40
- Permanent Court of International Justice38
- Economic policy33
- International cooperation33
- Law and legislation33
- Codification31
- Communication and traffic31
- Economic conditions31
- Intellectual cooperation30
- World War, 1914-191829
- Public health27
- Reconstruction (1914-1939)27