Prehistory

Prehistory, sometimes referred to as pre-literary history, is the period of human history between the first known use of stone tools by hominins c. 3.3 million years ago and the beginning of recorded history with the invention of writing systems. The use of symbols, marks, and images appears very early among humans, but the earliest known writing systems appeared c. 5,200 years ago. The adoption of writing across the globe was a gradual process, so that the end of prehistory occurred at different times in different places, and the term is less often used in discussing societies where prehistory ended relatively recently. The period when a culture is written about by others but has not developed its own writing system is often known as the protohistory of the culture.

Human prehistory differs from history not only in terms of its chronology but also in the way it deals with the activities of archaeological cultures rather than named nations or individuals. Restricted to material processes, remains, and artefacts rather than written records, prehistory is anonymous. Because of this, reference terms that prehistorians use, such as "Neanderthal" or "Iron Age", are modern labels with definitions sometimes subject to debate. In most cases however, and in particular as one goes back further in time, these assigned labels are the only way of distinguishing groups of prehistoric peoples and conveying information about them in the present.

By definition, there are no written records from human prehistory, which can only be known from material archaeological and anthropological evidence: prehistoric materials and human remains. These were at first understood by the collection of folklore and by analogy with pre-literate societies observed in modern times.