Answer:
The Civil War in the United States began in 1861, after decades of simmering tensions between northern and southern states over slavery, states' rights and westward expansion. ... The War Between the States, as the Civil War was also known, ended in Confederate surrender in 1865.
Explanation:
It does not have A. Key signatures
It does have staves, it is what it is written on
It does have square shapes and diamond shapes as indicated in the photo