"Prehistoric" refers to the time before written records existed, covering a vast period from the formation of Earth to the invention of writing systems. This era includes the development of early humans, such as Homo sapiens, and their ancestors, who lived in small groups and relied on hunting and gathering for survival. During the prehistoric period, people created tools from stone, wood, and bone, which helped them adapt to their environment. They also expressed themselves through art, as seen in cave paintings like those found in Lascaux, France. These early creations provide valuable insights into the lives and beliefs of our ancient ancestors.