Answer:
It urged Lincoln to give the Emancipation Proclamation.
Step-by-step explanation:
The explanation that best shows how the Battle of Antietam influenced President Lincoln's perspective on the war was that it urged Lincoln to give the Emancipation Proclamation.
With the triumph of the Union Army over the Confederates in the Battle of Antietam permitted President Abraham Lincoln to give the Emancipation Proclamation on September 22, 1862. It kept going one day in the endeavour of the South to attack the North.
History specialists consider this fight at the bloodiest one-day fight. The new Emancipation Proclamation proclaimed freedom for every one of the slaves in America.