Why is it said that the Sumerian Civilization paved the way for future civilizations in Mesopotamia?

       The Sumerians were the first people to form a civilization, and they were considered as one of the advanced civilizations. Their culture influenced future civilizations. Social classes were formed, as people started doing different jobs, which in turn allowed them to live in different ways.

          In Sumer, the city became the centre of trade, religion, and social life. The city layout described the social classes developing.

           The Sumerian city was centre around a massive temple complex called a Ziggurat, where the god of the city was worshipped. The Sumerians believed that gods controlled nature and life. They offered food and wine to keep the gods happy.

           Palaces of the King’s family surrounded the temple, which was again, surrounded by houses and shops for government workers, and craftsmen. Smaller houses were found outside the city, but these still lay within the large defensive walls that surrounded the city. Narrow alleys and small streets divided the houses.