At IDNLearn.com, find answers to your most pressing questions from experts and enthusiasts alike. Discover detailed answers to your questions with our extensive database of expert knowledge.

2. What were "greenbacks"?
copper coins used by the Confederacy during the Civil War
O privately issued currency used by the Union during the Civil War
O paper currency used by the Confederacy during the Civil War
O commodity money used by the Union during the Civil War