Answer:
President Lincoln had first proposed the Emancipation Proclamation to his Cabinet in July 1862, but Secretary of State William Seward suggested waiting for a Union victory so that the government could prove that it could enforce the Proclamation. Although the Battle of Antietam resulted in a draw, the Union army was able to drive the Confederates out of Maryland – enough of a “victory,” that Lincoln felt comfortable issuing the Emancipation just five days later.
Step-by-step explanation: