Revolution

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In political science, a revolution (Latin: revolutio, 'a turn around') is a rapid, fundamental transformation of a society's state, class, ethnic or religious structures.^[1][2][3] A revolution involves the attempted change in political regimes, substantial mass mobilization, and efforts to force change through non-institutionalized means (such as mass demonstrations, protests, strikes, or violence).^[1]

Revolutions have occurred throughout human history and vary widely in terms of methods, success or failure, duration, and motivating ideology.^[1][4] Revolutions may start with urban insurrections and the collapse of a regime or they may start in the periphery through guerilla war or peasant revolts.^[1] Regimes may be vulnerable to revolutions due to military defeats, affronts to national pride and identity, repression and corruption.^[1] Revolutions may prompt counter-revolutions that seek to prevent a revolution or reverse the course on an ongoing or successful revolution.^[5]

The international system may diffuse ideologies and models of governance, such as nationalism, self-determination, republicanism, liberalism, democracy, fascism and socialism, that inspire revolutions.^[6]

Notable revolutions in recent centuries include the American Revolutionary War (1775–1783), the French Revolution (1789–1799), the Haitian Revolution (1791–1804), the Spanish American wars of independence (1808–1826), the European Revolutions of 1848, the Mexican Revolution (1910–1920), the Russian Revolution in 1917, the Chinese Communist Revolution of the 1940s, the Decolonisation of Africa, the Cuban Revolution in 1959, the Iranian Revolution in 1979, and the European Revolutions of 1989.