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This timeline of prehistory covers the time from the appearance of Homo sapiens approximately 315,000 years ago in Africa to the invention of writing, over 5,000 years ago, with the earliest records going back to 3,200 BC. Prehistory covers the time from the Paleolithic (Old Stone Age) to the beginning of ancient history.
See Prehistory of Ohio. c. 800 BC: Adena people erect earthworks and mounds in present-day Ohio, Indiana, Kentucky, West Virginia, and Pennsylvania. [1] [2] 500–1 BC: Basketmaker phase of early Ancestral Pueblo culture begins in the American Southwest. 500 BC–AD 1000: Plains Woodland period on the Great Plains. [3]
Prehistory – Period between the appearance of Homo ("humans"; first stone tools c. three million years ago) and the invention of writing systems (for the Ancient Near East: c. five thousand years ago).
The word "prehistory" first appeared in English in 1836 in the Foreign Quarterly Review. [16] The geologic time scale for pre-human time periods, and the three-age system for human prehistory, were systematised during the nineteenth century in the work of British, French, German, and Scandinavian anthropologists, archaeologists, and antiquarians.
Timeline of prehistoric Britain. Other centuries: Prehistory | 1st century: Events from the prehistory of Britain (to 1 BC). Conventions
Ancient China c. 2100 – 221 BCE Imperial period c. 221 BCE – 1911 CE Modern period. Americas North America North America: Lithic/Paleo-Indian (pre 8000 BCE) Archaic (c. 8000 – 1000 BCE) Woodland (1000 BCE to 1000 CE) Mississippian (800 CE to 1600 CE) Mesoamerica Mesoamerica: Lithic/Paleo-Indian (pre 8000 BCE) Archaic (c. 8000 – 1000 BCE)
Timeline of diving technology (Prehistory–present) Timeline of materials technology (29,000 BCE–present) Women in dentistry (16th century–present) Timeline of female education (1608–present) Timeline of hydrogen technologies (1625–present) Timeline of solar cells (1839–present) Female education in the United States (1639–present)
The ages of more recent layers are calculated primarily by the study of fossils, which are remains of ancient life preserved in the rock. These occur consistently and so a theory is feasible. Most of the boundaries in recent geologic time coincide with extinctions (e.g., the dinosaurs) and with the appearances of new species (e.g., hominids).