What significant change occurred surrounding the formation of Rome's first law code?

The significant change surrounding the formation of Rome's first law code was the introduction of written laws. Prior to this development, Roman laws were largely unwritten and subject to interpretation by officials, which often led to uncertainties and inconsistencies in legal proceedings. By codifying laws and making them public, the early Romans created a system that allowed citizens to have direct access to the laws governing them. This advancement also marked a crucial step towards a more organized and equitable legal system, as it diminished the reliance on the discretionary power of magistrates and provided a standardized set of rules that could be applied consistently. The formation of the law code represented a foundational moment for the Roman Republic, emphasizing the importance of the rule of law and laying the groundwork for future legal developments in Roman society.