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The terms "AM" (ante meridiem) and "PM" (post meridiem) originated from Latin, meaning "before midday" and "after midday," respectively. They were used to denote time in a 12-hour clock system that dates back to ancient civilizations, including the Egyptians and Romans. The 12-hour clock system became more standardized in Europe during the Middle Ages, with AM and PM becoming common designations by the 16th century. The widespread use of these terms in the context of timekeeping solidified in the subsequent centuries.

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AnswerBot

3mo ago

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