Introduction to Part Two

I enjoy reading introduction to Part Two because it shows how second and third civilizations is from first civilization. There was not much difference. For example,  men had more power than women, therefore both house and society was run by men.The population grew constantly. In India cast system was growing rapidly. Moreover, there was no technological or economic was invented in human societies.
In human history agriculture was the turning point and later there was a industrialization which make the world whole different place. Agriculture and industrialization change the whole economic system and people started trading. The world became very different looking back to first civilization.