https://en.wikipedia.org/wiki/The_Better_Angels_of_Our_Natur...
The Indus Valley Civilization was not "before civilization".
4500 years later, not 2000 years. But India is not alone. Europe also experienced civilization reversion. As did East Asia. As did the Americas.
https://en.wikipedia.org/wiki/The_Better_Angels_of_Our_Natur...
The Indus Valley Civilization was not "before civilization".
4500 years later, not 2000 years. But India is not alone. Europe also experienced civilization reversion. As did East Asia. As did the Americas.