
The US Constitution is the most important legal document in the United States. Created in 1787, it serves as the supreme law of the land, establishing a framework for the federal government and outlining its structure and function. The Constitution is a set of formally written laws and principles that determine the power and authority of the three branches of government, guaranteeing the fundamental rights of its citizens. It can be amended with a two-thirds majority vote in both houses of Congress and a ratification vote by three-fourths of the states. The US Constitution is the world's first written constitution and has served as a model for many other countries' constitutions.
| Characteristics | Values |
|---|---|
| Date established | 1787 |
| Date it came into force | March 4, 1789 |
| Primary function | Describes the structure and function of the federal government |
| Amendments | Requires a two-thirds majority vote of both houses of Congress and a ratification vote by three-fourths of the states |
| Management of government | Separation of powers and judicial review |
| Legislative powers | Vested in a Congress of the United States, consisting of a Senate and House of Representatives |
| House of Representatives | Members chosen every second year by the people of the several states |
| Promotion of progress in science and the arts | Exclusive rights to authors and inventors for their respective writings and discoveries |
| Financial | No money shall be drawn from the Treasury unless by Appropriations made by Law |
| Federal government | Explains the organization of the federal government, including separation of powers, checks and balances, and enumerated powers |
| Source of legislation | Most prominent source of written legislation empowering citizens |
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What You'll Learn

The US Constitution is the most important legal document in the country
The US Constitution is the country's most important legal document. It is the supreme law of the United States, established in 1787, and describes the structure and function of the federal government. The Constitution is a set of formally written laws and principles that determine the power and authority of the three arms of government: legislative, executive, and judicial. It also guarantees the fundamental rights of citizens.
The authors of the Constitution, known as framers, included concepts such as federalism, checks and balances, and the separation of powers. These were adopted to prevent the federal government from having unlimited power. The separation of powers divides the government into the three aforementioned branches, with the intention of preventing any one branch from becoming too dominant.
The US Constitution is also the first written constitution in the world. It has served as a basis for written and democratic government worldwide, influencing the formulation of constitutions in many other countries. The Constitution can be amended with a two-thirds majority vote in both houses of Congress and a ratification vote by three-fourths of the states.
The creation of the US Constitution was a lengthy process, with the final document signed by 39 delegates in 1787 and submitted for ratification. It came into force on March 4, 1789, after being ratified by nine states, as required by Article VII. The Constitution has endured due to its ability to adapt and not confer permanent advantage to any one set of economic or social forces.
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It establishes a federal government with three branches
The US Constitution, created in 1787, establishes a federal government with three branches: the legislative, executive, and judicial. This separation of powers is intended to prevent any one branch from becoming too powerful and to create a system of checks and balances.
The legislative branch, also known as Congress, is responsible for making laws. It consists of a Senate and a House of Representatives, with each state allocated two senators regardless of its population. The House of Representatives is composed of members chosen every second year by the people of the various states. The legislative branch also includes the vice president, who serves as the president of the Senate and can cast a tie-breaking vote.
The executive branch, established in Article Two of the Constitution, vests executive power in the president of the United States. The president is both the head of state and the head of government. They are responsible for enforcing the laws made by the legislative branch and have the power to veto legislation. The president also nominates heads of federal agencies, federal judges, and Supreme Court justices, who must be confirmed by the Senate.
The judicial branch, also known as the judiciary, is responsible for interpreting the law. It includes the Supreme Court, which can rule on the constitutionality of laws and overturn them if they are found to be unconstitutional. The Constitution establishes the Supreme Court and authorizes Congress to create inferior courts as needed. Federal judges are appointed by the president and confirmed by the Senate, serving lifetime tenure with guaranteed compensation.
The separation of powers and checks and balances between these three branches ensure that power is divided and properly maintained within the federal government. This system of government is outlined in the US Constitution, which serves as the supreme law of the land and the most important legal document in the United States.
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It can be amended with a two-thirds majority vote in Congress
The US Constitution is a set of formally written laws and principles that determine the power and authority of the three arms of government, guaranteeing the fundamental rights of its citizens. It is the most important legal document in the United States of America, serving as the supreme law of the land.
The Constitution can be amended with a two-thirds majority vote in Congress. This means that two-thirds of both the House of Representatives and the Senate must agree to propose an amendment. This is the first method of proposing an amendment, and it has been used to propose thirty-three constitutional amendments, which were then sent to the states for potential ratification. There have been at least 11,000 proposals to amend the Constitution, but many did not make it past Congress and were not approved by the two-thirds majority required to be submitted to the states for ratification.
The second method of proposing an amendment is through a constitutional convention called for by two-thirds of the state legislatures. However, none of the 27 amendments to the Constitution have been proposed by constitutional convention. Once an amendment is proposed, it is sent to the states for ratification.
A proposed amendment becomes part of the Constitution as soon as it is ratified by three-fourths of the states (38 out of 50 states). The ratification process is administered by the Archivist of the United States, who heads the National Archives and Records Administration (NARA). The Archivist submits the proposed amendment to the states by sending a letter of notification to each governor, who then formally submits the amendment to their state legislatures. Once a state ratifies the proposed amendment, it sends an original or certified copy of the state action to the Archivist, who certifies that the amendment is valid and has become part of the Constitution.
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It was signed in 1787 and came into force in 1789
The US Constitution was signed on September 17, 1787, and came into force on March 4, 1789. It is the first written constitution in the world and the most important legal document in the United States of America.
The Constitution was drafted in secret by delegates to the Constitutional Convention during the summer of 1787. The convention assembled at Independence Hall in Philadelphia between May 25 and September 17, 1787. The delegates were chosen by the state legislatures of 12 of the 13 original states; Rhode Island refused to send delegates. The convention's initial mandate was to revise the Articles of Confederation, which had proven ineffective in meeting the needs of the young nation. However, the delegates ultimately proposed and created an entirely new form of government.
The Constitution established the federal government of the United States, outlining its structure and function. It introduced the concept of separation of powers, dividing the government into three branches: legislative, executive, and judicial. This separation prevents any one branch from becoming too powerful. The Constitution also includes the principles of checks and balances and enumerated powers, ensuring that power is divided and properly maintained within the government.
Within three days of its signing, the Constitution was submitted to the Congress of the Confederation in New York City, the nation's temporary capital. Congress voted unanimously to forward the proposal to the thirteen states for their ratification. The Constitution was ratified by the required nine of the 13 states by December 1787, and federal elections were held from December 15, 1788, to January 10, 1789. The new government was set to begin on March 4, 1789.
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It includes the principle of the separation of powers
The US Constitution, established in 1787, is the primary legal document that describes the structure and function of the federal government. It includes the principle of the separation of powers, which divides the federal government into three branches: the legislative, the executive, and the judiciary. This separation is intended to prevent any one branch from becoming too powerful and to protect the life, liberty, and pursuit of happiness promised to citizens.
The Founding Fathers of the United States, such as Alexander Hamilton and James Madison, participated in the Constitutional Convention of 1787, which drafted the Constitution. Their experience with the British monarchy informed their belief that concentrating distinct governmental powers in a single entity would subject the nation's people to arbitrary and oppressive government action. The Declaration of Independence stands for the idea that the people should be free to govern themselves and protect their natural rights.
Each branch of the US government has separate powers, allowing it to perform its tasks efficiently and effectively. However, there is also overlap, and each branch can "check" the actions of the other two. For example, the legislative branch must confirm the president's nominees for federal judges or Supreme Court justices, and Congress can impeach a federal judge or Supreme Court justice, thereby removing them from office.
The Supreme Court has also raised concerns about the judiciary encroaching on the legislative or executive spheres. For instance, in Marbury v. Madison, the Supreme Court interpreted Article VI's establishment of the Constitution as superior to other federal law, forbidding Congress from exercising its legislative power in a way that enlarged the original jurisdiction of the Supreme Court beyond the boundaries established in Article III.
The separation of powers doctrine is a key feature of the US Constitution, and many countries have based their constitutions on this principle. It ensures that power is divided and properly maintained within the government, providing a framework for the organisation of the federal government.
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Frequently asked questions
The US Constitution is the most important legal document in the United States of America. It establishes a framework that includes the separation of powers, checks and balances, and enumerated powers.
The purpose of the US Constitution is to provide a framework for the federal government, detailing how it is structured and how it operates. It also guarantees the fundamental rights of citizens.
The US Constitution divides the federal government into three branches: the legislative, executive, and judicial.
The US Constitution can be amended with a two-thirds majority vote of both houses of Congress and a ratification vote by three-fourths of the states.

























