The beginning of the Copper Age can be attributed to the widespread adoption and use of copper as a material in tools and weapons. It would be the first of the three ages, where metal would take center stage in the advancement of the human race.
For further reading, check the following articles:
|100 Must-Know Facts about IVC for UPSC||Current Affairs|
|Major Sites in Indus Valley Civilization (IVC)||UPSC FAQ|
|NCERT Medieval History Notes for UPSC||100 Must-Know Facts about IVC for UPSC|