The 12 tables of the Early Roman Republic compared to America today

The United States Constitution is similar to the Twelve Tables of Roman law, because both are binding on all citizens and lay down the law of the land. ... It is very likely the Roman Twelve Tables influenced the writing of the Constitution becuase many connections can be drawn between both of the documents.

This principle is called "separation of powers." Each branch of government holds distinct but equal authority.

Explanation:

For example, Congress has the power to create laws, while the president has the power to execute these laws.