Who ruled the world in 1920?
The world wars: 75 states on the map for 1920, 75 with a known leader. Open the interactive map and move the slider to 1920 to see their borders.
| State | Led by in 1920 |
|---|---|
| Argentina | Hipólito Yrigoyen (President) |
| Australia | George V (King); Billy Hughes (Prime minister) |
| Azerbaijan Democratic Republic | Alimardan Topchubashov (Head of state); Mammad Yusif Jafarov (Acting Head of state); Nasib Yusifbeyli (Prime minister); Mammad Hasan Hajinski (Acting Prime minister) |
| Basutoland | Nathaniel Griffith Lerotholi (Paramount Chief) |
| Belgium | Albert I (King); Léon Delacroix (Prime minister); Henri Carton de Wiart (Prime minister) |
| Bogd Khanate of Mongolia | Bogd Khan (Khagan); Gonchigjalzangiin Badamdorj (Prime minister) |
| Bolivia | José Gutiérrez Guerra (President); Government Junta (Members: Bautista Saavedra, José María Escalier, José Manuel Ramírez) |
| Bourbon Restoration of Spain | Alfonso XIII (King); Manuel Allendesalazar y Muñoz de Salazar (Prime minister); Eduardo Dato (Prime minister) |
| Brunei | Muhammad Jamalul Alam II (Sultan) |
| Canada | Robert Borden (Prime minister); Arthur Meighen (Prime minister) |
| Colombia | Marco Fidel Suárez (President) |
| Czechoslovakia | Tomáš Garrigue Masaryk (President); Vlastimil Tusar (Prime Minister); Jan Černý (Prime Minister) |
| Democratic Republic of Georgia | Noe Zhordania (Prime minister) |
| Denmark | Christian X (King); Carl Theodor Zahle (Prime minister); Otto Liebe (Prime minister); Michael Pedersen Friis (Prime minister); Niels Neergaard (Prime minister) |
| Dominion of New Zealand | George V (King); William Massey (Prime minister) |
| Dominion of Newfoundland | George V (King); Richard Squires (Prime minister) |
| Ecuador | Alfredo Baquerizo (President); José Luis Tamayo (President) |
| El Salvador | Jorge Meléndez (President) |
| Emirate of Jabal Shammar | Saud bin Abdulaziz (Emir); ʿAbdullah bin Mutʿib (Emir) |
| Empire of Japan | Taishō (emperor); Hara Takashi (Prime minister) |
| Estonia | Ants Piip (State Elder); Jaan Tõnisson (Prime minister); Ado Birk (Prime minister); Jaan Tõnisson (Prime minister); Ants Piip (Prime minister) |
| Ethiopian Empire | Zewditu I (Empress) |
| Far Eastern Soviet Republic | Alexander Krasnoshchyokov (Chairman of the Government); Alexander Krasnoshchyokov (Prime minister); Boris Shumyatsky (Prime minister) |
| Finland | Kaarlo Juho Ståhlberg (President); Juho Vennola (Prime minister); Rafael Erich (Prime minister) |
| First Austrian Republic | Karl Seitz (President); Michael Hainisch (President); Karl Renner (Chancellor); Michael Mayr (Chancellor) |
| First Brazilian Republic | Epitácio Pessoa (President) |
| First Costa Rican Republic | Francisco Aguilar Barquero (President); Julio Acosta García (President) |
| First Portuguese Republic | António José de Almeida (President); Alfredo de Sá Cardoso (President of the Ministry); Francisco Fernandes Costa (President of the Ministry designate); Alfredo de Sá Cardoso (President of the Ministry); Domingos Pereira (President of the Ministry); António Maria Baptista (President of the Ministry); José Ramos Preto (Acting President of the Ministry and President of the Ministry); António Maria da Silva (President of the Ministry); António Granjo (President of the Ministry); Álvaro de Castro (President of the Ministry); Liberato Pinto (President of the Ministry) |
| First Republic of Armenia | Avetis Aharonian (Chairman); Hovhannes Kajaznuni (Chairman); Alexander Khatisian (Prime minister); Hamo Ohanjanyan (Prime minister); Simon Vratsian (Prime minister) |
| France | Raymond Poincaré (president); Paul Deschanel (President); Alexandre Millerand (President); Georges Clemenceau (President of the Council of ministers); Alexandre Millerand (President of the Council of ministers); Georges Leygues (President of the Council of ministers) |
| Guatemala | Manuel Estrada Cabrera (President); Carlos Herrera (President) |
| Honduras | Francisco Bográn (Acting President); Rafael López Gutiérrez (President) |
| Kingdom of Bulgaria | Boris III (Tsar); Aleksandar Stamboliyski (Prime minister) |
| Kingdom of Burundi | Mwambutsa IV (King); Mwambutsa IV Bangiriceng (King) |
| Kingdom of Greece | Alexander (King); Pavlos Kountouriotis (Regent); Olga Constantinovna (Regent); Constantine I (King); Eleftherios Venizelos (Prime minister); Dimitrios Rallis (Prime minister) |
| Kingdom of Hejaz | Hussein bin Ali (King) |
| Kingdom of Iceland | Christian X (King); Jón Magnússon (Prime minister) |
| Kingdom of Italy | Victor Emmanuel III (king); Francesco Saverio Nitti (Prime minister); Giovanni Giolitti (Prime minister) |
| Kingdom of Romania | Ferdinand I (King); Alexandru Vaida-Voevod (Prime minister); Alexandru Averescu (Prime minister) |
| Kingdom of Rwanda | Yuhi V Musinga (King) |
| Kingdom of Tonga (1900–70) | Sālote Tupou III (King); Tevita Tuʻivakano (Prime minister) |
| Latvia | Jānis Čakste (Acting President); Kārlis Ulmanis (Prime minister) |
| Liberia | Daniel Edward Howard (President); Charles D. B. King (President) |
| Lithuania | Antanas Smetona (President); Aleksandras Stulginskis (President); Ernestas Galvanauskas (Prime minister); Kazys Grinius (Prime minister) |
| Luxembourg | Charlotte (Grand Duchess); Émile Reuter (Prime minister) |
| Mandatory Iraq | Abd Al-Rahman Al-Gillani (Prime minister) |
| Mexico | Venustiano Carranza (President); Adolfo de la Huerta (President); Álvaro Obregón (President) |
| Morocco | Yusef (Sultan) |
| Muscat and Oman | Taimur (Sultan) |
| Mutawakkilite Kingdom of Yemen | Yahya Muhammad Hamid ed-Din (King) |
| Nicaragua | Emiliano Chamorro Vargas (President) |
| Norway | Haakon VII (King); Gunnar Knudsen (Prime minister); Otto Bahr Halvorsen (Prime minister) |
| Ottoman Empire | Mehmed VI (Sultan); Ali Rıza Pasha (Grand Vizier); Salih Hulusi Pasha (Grand Vizier); Damat Ferid Pasha (Grand Vizier); Ahmet Tevfik Pasha (Grand Vizier) |
| Panama | Belisario Porras Barahona (President); Ernesto Tisdel Lefevre (Acting President); Belisario Porras Barahona (President) |
| Peru | Augusto B. Leguía y Salcedo (Constitutional President) |
| Principality of Albania | Wilhelm (Prince in exile); Turhan Përmeti (Chairman of the Provisional Government); Sulejman Delvina (Chairman of the Provisional Government); High Council of Regency (Head of State); Turhan Përmeti (Prime minister); Sulejman Delvina (Prime minister); Iliaz Vrioni (Prime minister) |
| Qatar | Abdullah bin Jassim Al Thani (Emir) |
| Republic of Cuba | Mario García Menocal (President) |
| Republic of Haiti (1859–1957) | Philippe Sudré Dartiguenave (President) |
| Russian Soviet Federative Socialist Republic | Mikhail Kalinin (Chairman); Vladimir Lenin (Premier) |
| Second Polish Republic | Józef Piłsudski (Chief of State); Leopold Skulski (Prime minister); Władysław Grabski (Prime minister); Wincenty Witos (Prime minister) |
| South Russia (1919–1920) | Anton Denikin (Commander-in-Chief); Pyotr Wrangel (Commander-in-Chief) |
| Sublime State of Persia | Ahmad Shah Qajar (Shah) |
| Sultanate of Egypt | Fuad I (Sultan); Youssef Wahba (Prime minister); Mohamed Tawfik Naseem Pasha (Prime minister) |
| Sweden | Gustaf V (King); Nils Edén (Prime minister); Hjalmar Branting (Prime minister); Gerhard Louis De Geer (Prime minister) |
| Switzerland | Giuseppe Motta (President of the Confederation) |
| Thailand | Vajiravudh (King) |
| The Netherlands | Wilhelmina (Queen); Charles Ruijs de Beerenbrouck (Prime minister) |
| Tibet (1912–1951) | Thubten Gyatso (13th Dalai Lama) |
| Union of South Africa | George V (King); Jan Smuts (Prime minister) |
| United Kingdom of Great Britain and Ireland | George V (king); David Lloyd George (Prime minister) |
| United States | Woodrow Wilson (president) |
| United States of Venezuela | Victorino Márquez Bustillos (President) |
| Uruguay | Baltasar Brum (President) |
| Weimar Republic | Friedrich Ebert (President); Gustav Bauer (Chancellor); Hermann Müller (Chancellor); Constantin Fehrenbach (Chancellor) |