Identify two periods of history​

Historians rely on written records and archaeological evidence to understand more about human history. They use these resources to divide human existence into five main historical eras: Prehistory, Classical, Middle Ages, Early Modern, and Modern eras. Keep reading to learn the main civilizations, technological achievements, important historical figures, and significant events during these major time periods in history.

in the 1950s, country music came into its own before rock-n-roll took off in the 60s while jazz and classical music continued to innovate

some american cities felt workers were being oppressed by business monopolies