The Stone Age was a prehistoric period that lasted more than 3 million years, from the point when human ancestors began using stone tools until the time we invented metalworking. Archaeologists often ...

When most people think of the Paleolithic era, they likely think of ancient hominins with spears chasing after wooly mammoths. Or they think of cave men numbly knocking rocks together, waiting for a ...

While life emerged around 4 billion years ago, human history—from the earliest humans approximately 2.5 million years ago to the present day—represents a relatively short period in the scale of ...