Identify the time period brfore the invention of writing?

The time period before the invention of writing is known as prehistory. This era encompasses the time from the emergence of early humans, around 2.5 million years ago, until the development of writing systems, which began around 3200 BCE in Mesopotamia. Prehistory is characterized by the use of oral traditions and archaeological evidence to understand human cultures and societies. It includes the Stone Age, Bronze Age, and the beginnings of agriculture and settled communities.