Austria-HungaryAustria-Hungary, often referred to as the Austro-Hungarian Empire or the Dual Monarchy, was a multi-national constitutional monarchy in Central Europe between 1867 and 1918. Austria-Hungary was a military and diplomatic alliance of two sovereign states, with a single monarch who was titled both Emperor of Austria and King of Hungary. Austria-Hungary constituted the last phase in the constitutional evolution of the Habsburg monarchy: it was formed with the Austro-Hungarian Compromise of 1867 in the aftermath of the Austro-Prussian War and was dissolved shortly after Hungary terminated the union with Austria on 31 October 1918.
Hungarian People's RepublicThe Hungarian People's Republic (Magyar Népköztársaság) was a one-party socialist state from 20 August 1949 to 23 October 1989. It was governed by the Hungarian Socialist Workers' Party, which was under the influence of the Soviet Union. Pursuant to the 1944 Moscow Conference, Winston Churchill and Joseph Stalin had agreed that after the war Hungary was to be included in the Soviet sphere of influence. The HPR remained in existence until 1989, when opposition forces brought the end of communism in Hungary.
Hungarian irredentismHungarian irredentism or Greater Hungary (Nagy-Magyarország) are irredentist political ideas concerning redemption of territories of the historical Kingdom of Hungary. Targeting at least to regain control over Hungarian-populated areas in Hungary's neighbouring countries. Hungarian historiography uses the term "Historic Hungary" (történelmi Magyarország). "Whole Hungary" (Egész-Magyarország) is also commonly used by supporters of this ideology.
Duality (mathematics)In mathematics, a duality translates concepts, theorems or mathematical structures into other concepts, theorems or structures, in a one-to-one fashion, often (but not always) by means of an involution operation: if the dual of A is B, then the dual of B is A. Such involutions sometimes have fixed points, so that the dual of A is A itself. For example, Desargues' theorem is self-dual in this sense under the standard duality in projective geometry. In mathematical contexts, duality has numerous meanings.
Inverted totalitarianismThe political philosopher Sheldon Wolin coined the term inverted totalitarianism in 2003 to describe what he saw as the emerging form of government of the United States. Wolin analysed the United States as increasingly turning into a managed democracy (similar to an illiberal democracy). He uses the term "inverted totalitarianism" to draw attention to the totalitarian aspects of the American political system and argues that the American government has similarities to the Nazi government.
GuevarismGuevarism is a theory of communist revolution and a military strategy of guerrilla warfare associated with Marxist–Leninist revolutionary Ernesto "Che" Guevara, a leading figure of the Cuban Revolution who believed in the idea of Marxism–Leninism and embraced its principles. After the 1959 triumph of the Cuban Revolution led by a militant foco under Fidel Castro, his Argentine-born, cosmopolitan and Marxist colleague, Guevara parlayed his ideology and experiences into a model for emulation (and at times, direct military intervention) around the globe.
Black Ribbon DayThe Black Ribbon Day, officially known in the European Union as the European Day of Remembrance for Victims of Stalinism and Nazism and also referred to as the Europe-wide Day of Remembrance for the victims of all totalitarian and authoritarian regimes, is an international day of remembrance for victims of totalitarianism regimes, specifically Stalinist, communist, Nazi and fascist regimes. Formally recognised by the European Union, the Organization for Security and Co-operation in Europe and some other countries, it is observed on 23 August.
Coherent dualityIn mathematics, coherent duality is any of a number of generalisations of Serre duality, applying to coherent sheaves, in algebraic geometry and complex manifold theory, as well as some aspects of commutative algebra that are part of the 'local' theory. The historical roots of the theory lie in the idea of the adjoint linear system of a linear system of divisors in classical algebraic geometry. This was re-expressed, with the advent of sheaf theory, in a way that made an analogy with Poincaré duality more apparent.
