There is a strong correlation between the nature of social class and <em>social inequality</em>.
The stratification of <em>social classes</em> not only depend on wealth, but also on factors like education and a person's occupation. This means that people in the same social class, besides being in the same range of wealth, also share the same lifestyle and similar social honors from others.
<em>Social inequality</em> occurs when the sole distribution of wealth is unequal among all of the members of a given society.
Wealth is a powerful factor that enables a person to achieve a better education and eventually escalate to upper social classes. This is where social inequality relates with the nature of social classes.
Though they shared the Sumerian language<span> as a form of communication, these city-states shared little else, and were in a constant state of </span>warfare<span>, often battling each other for control over water supplies and the fertile land. A typical Sumerian city was well fortified with thick, tall walls, which the king was responsible for maintaining, in hopes of deterring would-be attackers. Within a Sumerian city’s walls were avenues that were used for religious processionals, and high, stepped temples know as ziggurats. Sumerian cities often had several ziggurats, each dedicated to a different god or goddess.</span>

Local organizations play an important role in social reform. We can see that governmental and non-governmental organizations are involved in the activities of social reform. There are various organizations of local level such as youth club, people's awareness club, mother's group, women's group, etc. The local bodies like village development commitee, municipality, ward commitee, etc. have also been estabilished for social reform. They carry out different programs to solve the social problems and bring a new change in a society. Such local organizations have done exemplary work although some have been passive. It is our duty to wake such passive organizations up and give them pressure to work. We have to co-operate with them in their progammes.