Who became the first president of the United States under the Constitution?

George Washington became the first president of the United States under the Constitution.

Washington was unanimously chosen by the Electoral College in 1789 and took the oath of office on April 30 that year at Federal Hall in New York City. His election followed his leadership of the Continental Army during the Revolutionary War and his prominence at the Constitutional Convention.

As president, Washington helped establish precedents for the new office. He selected a cabinet, supported the creation of a national financial system, and oversaw the adoption of the Bill of Rights in 1791. He was reelected in 1792 and voluntarily left office after two terms in 1797.

Washington is sometimes described as the first U.S. president without qualification, but earlier presidents served under the Articles of Confederation. Washington was the first president under the Constitution, which created the current federal framework. John Adams succeeded him as the second president.