Since Lee surrendered to Grant, at the Appotomox, that meant that slavery was outlawed and bonded slaves could be set free. Hope that helps you and if it does, please mark as the brainliest answer. Thanks.
The North and the South had pretty equal army sizes during the war. The North had a big industrial industry during this time. The Confederacy had 1/9 of industrial capacity compared to the North at the start of the war.