President of the United States
Overview
The President of the United States of America is the head of state
Head of State
A head of state is the individual that serves as the chief public representative of a monarchy, republic, federation, commonwealth or other kind of state. His or her role generally includes legitimizing the state and exercising the political powers, functions, and duties granted to the head of...

 and head of government
Head of government
Head of government is the chief officer of the executive branch of a government, often presiding over a cabinet. In a parliamentary system, the head of government is often styled prime minister, chief minister, premier, etc...

 of the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

. The president leads the executive branch
Executive (government)
Executive branch of Government is the part of government that has sole authority and responsibility for the daily administration of the state bureaucracy. The division of power into separate branches of government is central to the idea of the separation of powers.In many countries, the term...

 of the federal government
Federal government of the United States
The federal government of the United States is the national government of the constitutional republic of fifty states that is the United States of America. The federal government comprises three distinct branches of government: a legislative, an executive and a judiciary. These branches and...

 and is the commander-in-chief of the United States Armed Forces
United States armed forces
The United States Armed Forces are the military forces of the United States. They consist of the Army, Navy, Marine Corps, Air Force, and Coast Guard.The United States has a strong tradition of civilian control of the military...

.

Article II of the U.S. Constitution
Article Two of the United States Constitution
Article Two of the United States Constitution creates the executive branch of the government, consisting of the President and other executive officers.-Clause 1: Executive power:...

 vests the executive power of the United States in the president and charges him with the execution of federal law, alongside the responsibility of appointing federal executive, diplomatic, regulatory, and judicial officers, and concluding treaties with foreign powers, with the advice and consent of the Senate
United States Senate
The United States Senate is the upper house of the bicameral legislature of the United States, and together with the United States House of Representatives comprises the United States Congress. The composition and powers of the Senate are established in Article One of the U.S. Constitution. Each...

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Timeline

1789    George Washington is unanimously elected as the first President of the United States by the U.S. Electoral College.

1789    On the balcony of Federal Hall on Wall Street in New York City, George Washington takes the oath of office to become the first elected President of the United States.

1789    A national Thanksgiving Day is observed in the United States as recommended by President George Washington and approved by Congress.

1792    The Postal Service Act, establishing the United States Post Office Department, is signed by President George Washington.

1792    U.S. President George Washington exercises his authority to veto a bill, the first time this power is used in the United States.

1793    George Washington holds the first Cabinet meeting as President of the United States.

1797    In the first ever peaceful transfer of power between elected leaders in modern times, John Adams is sworn in as President of the United States, succeeding George Washington.

1800    The United States Library of Congress is established when President John Adams signs legislation to appropriate $5,000 USD to purchase "such books as may be necessary for the use of Congress".

1800    U.S. President John Adams takes up residence in Washington, D.C. (in a tavern because the White House was not yet completed).

1800    US President John Adams becomes the first President of the United States to live in the Executive Mansion (later renamed the White House).

 
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