Final answer:
The Roman Republic adhered to unwritten practices such as the mos maiorum, which dictated social norms, and the evolving power dynamics between patricians and plebeians, which influenced political changes in Rome.
Step-by-step explanation:
The Roman Republic followed certain unwritten customs and traditions, which were an essential part of their political and social systems. Two notable unwritten practices of the Roman Republic were the mos maiorum and the power dynamics between the patricians and plebeians.
The mos maiorum, or 'the way of the ancestors,' was a foundational unwritten code that governed both private and public behavior in Roman society. This system dictated social norms and was deeply respected by the Romans, influencing all aspects of life, from family to governance, in ancient Rome. It was based largely on precedent and cultural heritage rather than codified laws.
Another unwritten practice was the complex relationship between the patricians and plebeians within the political framework. Originally, only patricians could hold public office and sit in the Senate. Over time, through the Struggle of the Orders, the plebeians sought greater equality, which led to significant political changes. This struggle defined much of the political evolution in the early centuries of the Republic, despite not being codified in a written constitution.