Final answer:
Revolutions are sparked by a gap between expected and actual need satisfaction, leading to people rising against the government due to growing discontent. Historical events like the French Revolution of 1789 and the European Revolution in 1848 highlight how economic distress and resentment towards the ruling regimes drive revolutions.
Explanation:
Revolutions often begin due to growing discontent resulting from a gap between expected need satisfaction and actual need satisfaction, as proposed by James C. Davies. When this gap widens, leading to an intolerable point, people are more likely to rise up against the government. Historical events such as the French Revolution of 1789 and the European Revolution in 1848 were propelled by economic distress and resentment towards the ruling regimes, showcasing how revolutions can be fueled by various grievances.
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