You might be interested to read "The Dawn of Everything" which discusses all of this. Cities and agriculture are far from requirements to have civilization. ht

You might be interested to read "The Dawn of Everything" which discusses all of this. Cities and agriculture are far from requirements to have civilization. https://www.penguin.co.uk/books/314/314162/the-dawn-of-everything/9780141991061.html https://www.penguin.co.uk/books/314/314162/the-dawn-of-every...