Eleven.
Up to the time of Fort Sumter, there were seven, all of them Deep South. Then, after Lincoln appealed for volunteer troops, all eyes were on the eight states of the Upper South, of which four joined the Confederacy, and the other four were kept in the Union - with some difficulty - by the adroit Lincoln.
Seven seceded before Fort Sumter, and four more immediately after it. Total eleven states of the Confederacy.
Most slave states left the union. The "border" states that practiced slavery, but stayed in the union, probably realized it would be too difficult to fight off the North.
25 of the 33 existing states in the United States had sided with the union by the end of the Civil War.
There were 26 states when Tyler was President.
The end of WW2 left these two countries as the only superpowers. The United States saw the Soviet Union as a revolutionary communist expansionist threat. The Soviet Union saw the United States as a counterrevolutionary imperialist threat.
11 southern states left the union and formed a separate government.
11 States
19 states were in the union when Madison left office in 1817.
Seven seceded before Fort Sumter, and four more immediately after it. Total eleven states of the Confederacy.
The states that left the union.
none. all the states were in the union. the otheones left the union.
The 7 states that left the union were the Confederate States of America, or the Confederacy. 4 additional states joined the first 7 to complete the Confederacy.
The four states that left the Union after President Lincoln's call for arms was South Carolina, Mississippi, Florida, and Alabama. Shortly after these states left the Union Georgia, Louisiana, and Texas succeeded.
border states are states that were left in the union but stil had slavery.
The Conferate states
Confederation
ANSWER In January 1861, with exception of South Carolina which left the Union in December 1860