Answer:
Although many had wanted to join the war effort earlier, they were prohibited from enlisting by a federal law dating back to 1792. President Lincoln had also feared that if he authorized their recruitment, border states would secede from the Union. By the end of the war, approximately 180,000 African-American soldiers had joined the fight.
Explanation: A large contingent of African Americans served in the American Civil War. 0 black men joined the Union Army: 0 officers, and 0 enlisted soldiers. Approximately 20,000 black sailors served in the Union Navy and formed a large percentage of many ships' crews. Later in the War, many regiments were recruited and organized as the United States Colored Troops, which reinforced the Northern side substant.
To support revising the Articles of Confederation was that the central government lacks power or lack of centralized government power.
The previous Article of Confederation allowed the states to hold most of the power, and the central government was too weak to even function properly. Due to this there was also huge difference in terms of economics from state to state.
