George Washington (February 22, 1732 [O.S. February 11, 1731] – December 14, 1799) was the first President of the United States of America, serving from 1789 to 1797, and the dominant military and political leader of the United States from 1775 to 1799. He led the American victory over Great Britain in the American Revolutionary War as commander-in-chief of the Continental Army from 1775 to 1783, and presided over the writing of the Constitution in 1787. Washington became the first president, by unanimous choice, and oversaw the creation of a strong, well-financed national government that maintained neutrality in the wars raging in Europe, suppressed rebellion, and won acceptance among Americans of all types. His leadership style established many forms and rituals of government that have been used since, such as using a cabinet system and delivering an inaugural address. Washington is universally regarded as the "Father of his country".

Washington was born into the provincial gentry of the Colonial Virginia slave society; his wealthy planter family owned tobacco plantations and slaves. After both his father and older brother died when he was young, Washington became personally and professionally attached to the powerful William Fairfax, who promoted his career as a surveyor and soldier. Washington quickly became a senior officer in the colonial forces during the first stages of the French and Indian War. Chosen by the Second Continental Congress in 1775 to be commander-in-chief of the Continental Army in the American Revolution, Washington managed to force the British out of Boston in 1776, but was defeated and almost captured later that year when he lost New York City. After crossing the Delaware River in the dead of winter, he defeated the British in two battles, retook New Jersey and restored momentum to the Patriot cause. Because of his strategy, Revolutionary forces captured two major British armies at Saratoga in 1777 and Yorktown in 1781. Historians laud Washington for his selection and supervision of his generals, encouragement of morale and ability to hold together the army, coordination with the state governors and state militia units, relations with Congress and attention to supplies, logistics, and training. In battle, however, Washington was repeatedly outmaneuvered by British generals with larger armies. After victory had been finalized in 1783, Washington resigned rather than seize power, proving his opposition to dictatorship and his commitment to American republicanism. He retired from the presidency in 1797 and returned to his home, Mount Vernon, and his domestic life where he managed a variety of enterprises. He freed all his slaves by his final 1799 will.