Name | Period | Notes |
Toltec Empire | 496-1122 | Existed as a confederation between the Toltecs and the Chichimeca, simultaneously as an empire exerting control over places like Cholula. |
League of Mayapan | 987-1461 | A pre-Hispanic state in Yucatan. |
Crown of Aragon | 1137-1716 | An alliance of medieval kingdoms including Aragon and Catalonia. |
Confederation of Madya-as | 13th century-1569 | A pre-Hispanic state in the Philippines. |
Old Swiss Confederacy | 1291 – 1798 | |
New England Confederation | 1643–1684 | British colonies of Massachusetts, Plymouth, Connecticut, and New Haven. |
Aro Confederacy | 1690–1902 | One of the two largest precolonial and colonial empires of the Igbo (Ibo) people of West Africa. The other being the Kingdom of Nri. |
United States of America | 1781–1789 | In its first steps, the United States were a confederation of thirteen states (Delaware, Pennsylvania, New Jersey, Georgia, Connecticut, Massachusetts, Maryland, South Carolina, New Hampshire, Virginia, New York, North Carolina, and Rhode Island and Providence Plantations) organized under the Articles of Confederation. |
Confederation of the Rhine | 1806–1813 | It was a client state of the First French Empire. |
Sweden-Norway | 1814–1905 | Personal union between Sweden and Norway. |
German Confederation | 1815–1866 | |
Argentine Confederation | 1831–1861 | First political organization of Argentina. Highly decentralized and without a head of state. |
Peru-Bolivian Confederation | 1836–1839 | |
Confederate States of America | 1861–1865 | The Confederacy was established by 11 southern states: South Carolina, Mississippi, Florida, Alabama, Georgia, Louisiana, Texas, Arkansas, North Carolina, Tennessee, and Kentucky. |
North German Confederation | 1867–1871 | It was a military alliance of 22 states of Germany with the Kingdom of Prussia. |
Austria-Hungary | 1867–1918 | Personal union between the Kingdoms and Lands Represented in the Imperial Council and the Lands of the Crown of Saint Stephen. |
Carlist States | 1872–1876 | Stablished by the carlists in Basque provinces and Navarre during the war. |
Soviet Union | 1922–1991 | Originally it was a confederation between four soviet socialist republics (Russian Soviet Federative Socialist Republic, Ukrainian Soviet Socialist Republic, Byelorussian Soviet Socialist Republic and Transcaucasian Socialist Federative Soviet Republic). As a confederation of member states, Soviet constitutions formally defined each member republic as a sovereign state, whose membership was voluntary, and could secede at any time. Soviet constitutions of 1936-onward defined the state as a federation. |
Arab Federation | 1958 | Ephimeral union of Jordania and Irak. |
United Arab Republic | 1958–1961 | Union between Syria and Egypt. |
United Arab States | 1958–1961 | Confederation between the United Arab Republic and North Yemen. |
Union of African States | 1958–1961 | An attempt to merge Ghana, Guinea and Mali through the views of panafricanism. |
Federation of Arab Republics | 1972–1977 | An attempt to merge Lybia, Egypt and Syria. |
Arab Islamic Republic | 1974 | Ephimeral proposed union of Libya and Tunisia. |
Senegambia | 1982–1989 | Including the nowadays Senegal and Gambia. |
Serbia and Montenegro | 2003–2006 | Replacing the former Federal Republic of Yugoslavia. |