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A period of 100 years is referred to as a “century.” The last Ice Age ended around 11,700 years ago, marking the transition to the warmer Holocene Epoch, which has since allowed for the rise of human civilizations and significant environmental changes.
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A century is a span of 100 years and is commonly used to categorize and understand historical events and developments. This unit of time helps historians and researchers frame the progression of social, political, and technological changes, making it easier to analyze patterns over extended periods. By grouping years into centuries, we can better appreciate the continuity and transformation of human experiences across time, from the emergence of civilizations to contemporary global issues. Therefore option 3 is the correct answer.
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