Need for law

The first laws appeared together with the invention of writing. The first code of laws was written by Ur-Nammu king of Mesopotamia in the city of Ur in 2100 BC. It dealt largely with compensation for body injuries, and with penalties for witchcraft and runaway slaves
The law has many definitions, but let me tell about the most famous. So under the law to understand - the moral norm-binding. But this definition does not fully reflect the essence of the law. And some people may confuse this definition and say that this definition of morality. But the definition of that Law - Regulatory and legislative act, having supreme legal force and regulating the important social relations. This definition clearly and fully reflects the concept of law