The Roman constitution was a set of procedures and customs.
Step-by-step explanation:
An uncodified set of guidelines and standards, conveyed mainly by precedents, was the Roman Constitution. The Roman constitution had been essentially unwritten and constantly changing, and it was not formal nor official.
A set of unwritten standards and customs was the constitution of the Roman Republic and guided the Roman Republic's procedural governance, along with various written laws.
From the Roman Republic, the constitution developed over almost five hundred years and became the constitution of the Roman Empire.