Who was the first president of the United States?

George Washington is recognized as the first president of the United States, serving from 1789 to 1797. He played a pivotal role in the founding of the nation, particularly during the American Revolutionary War, where he commanded the Continental Army. His leadership and dedication to the principles of democracy established many precedents for future presidents, including the traditions of the presidential office itself.

Washington's presidency was foundational in shaping the executive branch of the government and his willingness to step down after two terms set a standard that lasted until Franklin D. Roosevelt’s four-term presidency in the 20th century. He is often referred to as the "Father of His Country," reflecting his significant contributions to the establishment of the United States.

The other individuals mentioned, such as Thomas Jefferson, Abraham Lincoln, and Theodore Roosevelt, were indeed significant figures in American history, but they all held the presidency after Washington. Jefferson served as the third president, Lincoln as the sixteenth, and Roosevelt as the twenty-sixth, each making their own substantial impacts on the nation during their terms.