Although George Washington is better known for being the first president of the United States of America here are his biggest accomplishments:
Instrumental in starting the French and Indian War.
Commander in Chief of the Continental Army, though learning from trial and error, he ensured its survival long enough for France to assist in the winning the war and eventually the British tired of the expense of the war.
Post the revolutionary war, Washington was offered the ability to become King but refused such notions in the name of Liberty and Freedom.
He was essential to the convention since without his presence the convention would have not held much weight. When they asked him what they should call him, "he said, just call me Mr. President".
The only president to be voted unanimously each time.
The only founding Father to free his slaves.
Even during his own lifetime he was known as The Father of His Country.
Established the Bank of the United States and unified all the states debts into a national system to establish credit abroad.
1793 proclamation of neutrality .
Signed Jay's Treaty in 1795 .
Established the cabinet .
1795 Pinckney's Treaty .
Most importantly, he gave up the office when he could have served for life. He is thus known as the Cincinnatus of America for putting the country's values and needs before his own.
His Farewell Address shaped the course of the nation for the next hundred years and is considered a primer in republican virtues.