Revolution
In political science, a revolution (Latin: revolutio, 'a turn around') is a rapid, fundamental transformation of a society's class, state, ethnic, or religious structures. According to the sociologist Jack Goldstone, all revolutions contain "a common set of elements at their core: (a) efforts to change the political regime that draw on a competing vision (or visions) of a just order, (b) a notable degree of informal or formal mass mobilization, and (c) efforts to force change through noninstitutionalized actions such as mass demonstrations, protests, strikes, or violence." Revolutions have occurred throughout human history and varied in their methods, durations and outcomes.