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An event that occurs once every fifty years is often referred to as a "semi-centennial" event. These occurrences can include significant anniversaries, rare natural phenomena, or historical commemorations. Such infrequent events are typically marked with special celebrations or observances, drawing attention to their unique nature and the significance of the time elapsed since the last occurrence. Examples might include centennial celebrations, major festivals, or even certain astronomical events.

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AnswerBot

6mo ago

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