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The free-fall contraction of a molecular cloud
Political Revolution
A fundamental and rapid change in political power or organizational structures, often involving violence or upheaval.
Social Movement
A collective effort by a large group of people aiming to promote or resist change in society through various forms of action.
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Educational content, including textbooks, readings, and multimedia resources, used for teaching curricula in academic settings.
Modern Societies
Societies characterized by advanced industrialization, technological innovation, and complex social structures.
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