How does this artwork elucidate its Commission?
Artist John Trumbull (1756–1843) spent the early part of the American Revolutionary War as a soldier, serving as an aide to both George Washington and Horatio Gates.  After resigning from the army in 1777, he pursued a career as an artist.  In 1785 he began sketching out ideas for a series of large-scale paintings to commemorate the major events of the American Revolution.  After spending a time in England, he returned to New York City in 1789, where he sketched a number of dignitaries whose portraits he intended to use in these paintings.  In 1791 he traveled to Yorktown, Virginia, where he sketched the landscape of the surrender site.
Upon his return from Britain after the end of the War of 1812, he promoted this idea to the United States Congress.  On the strength of his application and the successful exhibition of The Death of General Warren at the Battle of Bunker's Hill, June 17, 1775 and The Death of General Montgomery in the Attack on Quebec, December 31, 1775, as well as studies for other proposed paintings, the Congress in 1817 voted to commission four large paintings from him, to be hung in the United States Capitol rotunda.The price was set at $8,000 per painting, with the size and subject matter to be determined by President James Madison.  A size of twelve by eighteen feet (370 cm × 550 cm) was agreed, as was the subject matter for the four paintings: the Declaration of Independence, the Surrender of General Burgoyne, the Surrender of Lord Cornwallis, and General George Washington Resigning His Commission.  Trumbull spent the next eight years executing the commission, completing this painting in 1820.  It was displayed in New York City, Boston, and Baltimore before coming to Washington, D.C., and Trumbull supervised its hanging in the Capitol rotunda in late 1820.  It has remained there since.
Trumbull himself cleaned and varnished the painting in 1828, and it has been periodically maintained since.  In 1971, damage from a penny that was thrown hard enough to pierce the canvas was repaired. All of the Rotunda paintings were most recently cleaned in 2008.
New York City John Trumbull War of 1812 James Madison United States Capitol rotunda Washington, D.C. Surrender of General Burgoyne The Death of General Montgomery in the Attack on Quebec, December 31, 1775 United States Declaration of Independence Baltimore Boston Yorktown, Virginia General George Washington Resigning His Commission American Revolution George Washington United States Capitol United States Congress Horatio Gates rotunda American Revolutionary War The Death of General Warren at the Battle of Bunker's Hill, June 17, 1775