What is the document that freed slaves in the areas rebelling against the US?

The document that freed slaves in the areas rebelling against the United States is the Emancipation Proclamation. Issued by President Abraham Lincoln on January 1, 1863, it declared that all enslaved people in Confederate-held territory were to be set free. While it did not immediately free all enslaved individuals, it was a significant step toward the abolition of slavery in the United States and allowed for the enlistment of African American soldiers in the Union Army.