The Code of Ur-Nammu: The Earliest Known Legal System

Dating to around 2100 BCE, the Code of Ur-Nammu is Mesopotamia's oldest known legal code. Established by King Ur-Nammu, this Sumerian code uniquely emphasized fines and compensation over severe physical punishments for offenses related to marriage, slavery, and property. Its "if-then" structure and focus on proportional justice marked a crucial shift, laying a foundational blueprint for future legal traditions.

Dianyndra K Hardy, Diasta A Bramulia

7/25/20251 min read

The Code of Ur-Nammu, established around 2100 BCE in Mesopotamia, is the oldest known legal code. It was created during the reign of Ur-Nammu, the king of Ur, and was continued by his successor, Shulgi. Unlike later legal codes, such as Hammurabi’s, this code emphasized fines and compensation rather than severe physical punishments. Written in Sumerian, it covered various aspects of society, including marriage, slavery, and property rights. The code was structured with a prologue highlighting the king’s role in maintaining justice, followed by laws that set clear penalties for specific offenses.

One of the most significant aspects of Ur-Nammu’s code was its use of conditional "if-then" statements, which became a foundation for future legal systems. For example, it prescribed specific fines for injury and differentiated between social classes in legal matters. The laws also addressed crimes like theft, adultery, and kidnapping, specifying fines or labor penalties instead of execution. The code’s focus on fairness and proportional justice marked a shift from arbitrary rule to a structured legal system, influencing later legal traditions in Mesopotamia and beyond.

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