What are the six cities the question asks about
The Catholic Monarchs Isabella of Castile<span>, Queen of </span>Castile<span> and her husband </span>King Ferdinand<span>, King of </span>Aragon<span>, pursued a policy of joint rule of their kingdoms and created a single Spanish monarchy. </span>
Answer:
I'm not very sure but I think they might.
Explanation:
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.
