You appear to be describing West Virginia - the mountain region of the slave-state of Virginia, that did not want to secede.
After Virginia seceded, these western counties organised their own secession from Virginia, and joined the Union.
I don't know whether they had to give up slavery in order to do so, but I would guess that Lincoln was ready to welcome them as a Northern slave-state, along with Missouri, Kentucky, Maryland and Delaware, who were not banned from slave-holding for the duration of hostilities.
Florida, Georgia, Alabama, Mississippi, Louisiana, Texas, South Carolina, North Carolina, Tennessee, Arkansas, and Virginia all seceded from the United States of America. Missouri, Kentucky, and Maryland were heavily pro-Confederate, but never officially seceded.
All eleven states of the Confederacy.
There were also four slave-states of the Upper South that remained loyal to the Union.
West Virginia
west Virginia : ]
The eleven states of the Confederacy.
north Carolina
Union. Maryland was an Union Border state but this counted Union of course.
Tennessee
No, Nevada was the 36th state to be admitted into the union in 1864, in the midst of the civil war.
California was a Union state. During the Civil War the role it played was shipping gold east, recruitment for the Union and a few other pro-Union activities.
South Carolina
Minnesota was a Union State during the Civil War.
Yes the union did win the American Civil War. This is the reason we only have one America.
A Union state.
Illinois was a Union state during the Civil War.
Nebraska was the first state admitted into the union after the civil war. Nebraska was admitted into the Union on March 1, 1867 becoming the 37th state to join the Union.
The union fought against slavery in the civil war
The Union.
First, the term 'America' refers to the entire western hemisphere. 'America' includes the continents of North America and South America. During the Civil War, the United States of America continued to exist. The North was referred to as the 'Union' and the South was referred to as the 'Confederacy.' The United States of America refused to recognize any right of a state to secede from the Union, and thus did not recognize the Confederacy.
West Virginia is the state entered the Union during the Civil War. The exact date was on June 2, 1863.
That's what caused the Civil War.
Tennessee was the fist southern state to rejoin the Union after the Civil War. Nebraska was the first new state to enter the United States of America. It is number 37, joining on March 1st, 1867.
During the Civil War New York was a Union state.