Theory:

We live in a modern world where information and technology are at our fingertips. The technologies that we have today didn’t have a sudden impact on our contemporary lifestyle. Prehistoric people have used their knowledge to set a strong foundation for today’s technologically advanced modern world’s.
 
Prehistoric humans are the trailblazer of creativity and knowledge. The artefact and various languages that we can understand today refer to their intelligence and intuitiveness.
Origin of the Earth and the geographical Ages:
The history of humans cannot be distinguished between the histories of earth. The upper layer of the earth contains geological, archaeological and biological evidence of historical times. Historic evidence acts as an important source to learn and recompose the earth and biological organism. Our ancestor’s bones are embedded in earth layers as fossils.
 
Palaeontologists and Archaeologists excavate the earth and rock layers in search of human ancestors. These witnesses and layers of the rocks are scientifically dated based on various stages in human evolution and prehistory. The evidence helps in understanding the evolution of human history and developments.
Archaeology is the study of human history and prehistory through the excavation and analysis of artefacts and other physical remains.
 
Paleoanthropology is the study of extinct members and their evolution using their fossil remains.
The earth formed 4.54 billion years ago. Progressively, the organism started growing. Then plants and animals came into existence, and the baseline was laid down for human evolution. The geologist segregates the time taken in the history of earth into Era, Period and Epoch.
 
Important!
1 Billion = 100 crore
1 Million = 10 Lakhs
Australopithecines are referred as apes from which the modern human evolved. The group of extinct primates is closely related to humans.
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The Geological Eras
Reference:
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