Answer:
ancient Rome, after the last Etruscan king was overthrown, the ancient Roman people vowed never to be ruled by a king again. They set up a system of government by the people and for the people. A couple thousand years later, after the American Revolution, the American people did not wish to be ruled by a king ever again. They set up a system of government by the people and for the people.
Both systems of government are republics. "A republic is a form of government in which the people elect, or choose, their leaders. In most countries with a republican government, the people elect the head of the government, such as a president. They also elect other people, called representatives, to make laws." Britannica Kids
There are many similarities between the government of ancient Rome under the Republic, and the government of the United States after the American Revolution. But there are also differences.
The U.S. The Three Branches of the US Government
1 President, House & Senate, People & States, Judges
The Roman Republic: The Senate of Rome, chart
2 Consuls, Assembly & Senate, People & Nobles, Praetors (Judges)
