What event caused four additional southern states to secede from the union?
A. The U.S. accepted West Virginia as a state.
B. The south fires on fort Sumter.
C. Lincoln declared the emancipation proclamation.
D. Lincoln raised an army.
A. The U.S. accepted West Virginia as a state.
B. The south fires on fort Sumter.
C. Lincoln declared the emancipation proclamation.
D. Lincoln raised an army.