Question

How are the different time periods classified?
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Answer 1

Answer:

Common eras include the Great Depression, the 'Roaring Twenties,' the Progressive Era, the Cold War Era, and numerous others. One of the ways history is commonly divided is into three separate periods: the Ancient Period (from 3600 BC - 500 AD), the Middle Ages (from 500 -1500), and the Modern Era (from 1500-present).