What were the military actions and social and economic changes of the first two years of the civil war?

To recruit more troops, conscription was adopted to fill the ranks, new weapons were developed.  During the course of the war, the Union also offered incentives to encourage more recruits.  New technologies were introduced and Northern industry was booming. The South still relied mostly on agriculture and though recruitment was high initially, it later decreased as the war dragged on.

it gave them more rights

when your a dog and you need a bone.   go and eat a rabbit