Altogether, southern states seceded from the union.

Altogether, eleven Southern states seceded from the Union, forming the Confederate States of America.

Explanation:

The Confederate States of America was a country formed by the eleven southern states that separated from the United States of America between 1861 and 1865. As its existence was never recognized internationally, its northern border is uncertain, but to the east it bounded with the Atlantic Ocean and to the south it had a border with Mexico and the Gulf of the same name.

Seven states declared their independence from the United States before Abraham Lincoln was proclaimed president (South Carolina, Mississippi, Florida, Alabama, Georgia, Louisiana and Texas), and four more did the same after the Civil War of the United States began with the Battle of Fort Sumter (Virginia, Arkansas, North Carolina and Tennessee).

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