prehistory

/ˌpriːˈhɪstəri/
noun
  1. The period of time before written records were kept.
    • The study of prehistory relies on fossils and artifacts.
    • We learned about prehistory in our social studies class.
    • Prehistory covers millions of years before the invention of writing.
  2. The early or hidden background of a situation or event.
    • The prehistory of the conflict goes back decades.
    • To understand the problem, you need to know the prehistory of the company.
    • The book explores the prehistory of the internet.
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