It could pertain to an uprising on the basis of rights to public funded and civil services. Or it could be a broader term referring to a political shift to the left in a government. An example of the latter: The election of Barack Obama signifies the climax of a growing liberal revolution in U.S. politics.
or in the case of the first: The results of Bolivia's 2002 presidential elections were over turned by a revolt staged in the lower class in the name of Nationalizing the oil economy.
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I'm known as Mage and you are?.. You're Someone?.. Pleased to meet ya!