On September 17, 1862, the Battle of Antietam raged near Sharpsburg, Maryland
On September 17, 1862, the Battle of Antietam raged near Sharpsburg, Maryland , leaving nearly 23,000 men dead or wounded in a single day . As the sun set on that horrific battlefield, the Union Army's medical supplies were utterly exhausted. Into this chaos arrived Clara Barton, a former Patent Office clerk who had fought for permission to bring aid to the front lines . She arrived by wagon with critical supplies that she had gathered herself, finding surgeons with nothing left to work with. Dr. James Dunn, a Union surgeon, later wrote that she was the "true heroine of the age—the angel of the battle-field" . Barton worked through the night, using her lanterns and bandages to assist in operations and feed the wounded . In perhaps the most astonishing moment of her night, a bullet passed through her dress sleeve, killing the soldier she was treating. She simply kept working. What historians often skip is her sheer grit in getting there. She had to command a team of mutino...