what precedent did the emancipation proclamation set
Publisher. A+E Networks. On this day in 1862, President Abraham Lincoln issues a preliminary Emancipation Proclamation, which sets a date for the freedom of more than 3 million black slaves in the United States and recasts the Civil War as a fight against slavery.is cabinet persuaded him not to make the announcement until after a Union victory. Lincolnâs opportunity came following the Union win at the Battle of Antietam in September 1862. On September 22, the president announced that slaves in areas still in rebellion within 100 days would be free.