Prehistory prehistory The time of human history between the usage of the first stone tools by hominins c. 3.3 million years ago and the emergence of writing systems is known as prehistory, also known as pre-literary history. Humans have long used symbols, signs, and images, but the first known writing systems developed around 5000 years ago, and it took thousands of years for writing systems to become widely established.Writing systems were not utilised in certain human societies until the eighteenth century, and in others they are still not used now. As a result, the end of prehistoric occurred at different times in different regions, and the word is less commonly employed in discussions of communities where prehistory ended lately. Early Bronze Age civilizations such as Sumer in Mesopotamia, the Indus Valley Civilization, and ancient Egypt were the first to develop their own scripts and retain historical records. The first to follow were neighbouring cultures. During the Iron Age, m
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