What event caused four additional Southern states to secede from the Union?
1.The U.S. accepted West Virginia as a state.
2.The South fired on Fort Sumter.
3.Lincoln declared the Emancipation Proclamation.
4.Lincoln raised an army.
1.The U.S. accepted West Virginia as a state.
2.The South fired on Fort Sumter.
3.Lincoln declared the Emancipation Proclamation.
4.Lincoln raised an army.