During the Neolithic revolution, people started settling in river valleys and establishing cities because they developed agriculture. It was of extreme importance for the development of human society because things like states were established and laws and people started developing basic science and things like that. Just look at how Egypt and Mesopotamia developed and how they influenced many other nations that came later.
The year that Persia divided into spheres of influence was on 1907
Our galaxy contains billions of stars
Answer: they all wanted to avoid problems between English and Indians
