Prehistory is the time in history before historical events were recorded.
It is the time from the beginning of the Earth to the time when people began to write about the things that happened.
Prehistory covers a much longer period than history.
The Earth was created 4,600 million years old
The first cells appeared 1,850 million years ago
The first living organisms appeared 535 million years ago
The first fish appeared 440 million years ago
The Earth had insects, fish, trees and plants by 365 million years ago
The first dinosaurs appeared 225 million years ago
The first mammals appeared 220 million years ago
First apes and gorillas appeared 8 million years ago
Human ancestors (homo habilis) appeared 2.6 million years ago
The Stone Age (when stone was first used to make tools) began 2.5 million years ago
The first humans (homo erectus) appeared about 1.8 million years ago
Neanderthal man appeared 500,000 years ago
Modern humans (homo sapiens) appeared 200,000 years ago
The Bronze Age (when humans began using copper and tin to make tools) began 3,600 BCE
The first writing system was developed by the Sumerians about 3500 BCE
Prehistory ended with the development of writing
Harvard Reference for this page::
Heather Y Wheeler. (2016). What is Prehistory. Available: http://www.tiffanymacbeth.com/HIstory/Prehistoric/whatisprehistory.htm. Last accessed