What factors other than political pressure brought about the Emancipation Proclamation and what did the Proclamation really accomplish?

Other than political pressure, factors such as the moral imperative to end slavery, the influence of abolitionist movements, and the strategic need to undermine the Confederacy contributed to the Emancipation Proclamation. The Proclamation declared the freedom of enslaved people in Confederate-held territories, which aimed to weaken the South's economy and bolster the Union’s war effort. While it did not immediately free all enslaved individuals, it transformed the Civil War into a fight for liberation and paved the way for the eventual abolition of slavery with the 13th Amendment.