Question

What do you mean by palaeolithic age and what came up into existence.

Answer 1

Hey friend!!
Here's your answer..
The Paleolithic or Palaeolithic is a period in human prehistory distinguished by the original development of stone tools that covers c. 95% of human technological prehistory. 
The Paleolithic coincides almost exactly with the Pleistocene epoch of geologic time, which lasted from 2.6 million years ago to about 12,000 years ago. This epoch experienced important geographic and climatic changes that affected human societies.

The hand axe was used for breaking open bones to scoop out the rich marrow ... Other types of tools show up in the late Paleolithic age which came into existence later.

Hope it helps you!!
Have a great day ahead:)