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The North won!
The First major battle was Bull Run, where an expected Union victory was turned into a defeat
Antietam was the first major battle during the Civil War that actually turned the South away from attacking the North. Very few Southern forays into the North occurred after Antietam. The last, Gettysburg, ended in disaster for the South.
Sectional arguments between the North and South
Actually there were two major issues that were decided by the US Civil War. The end of the Confederate rebellion made it clear that secession from the United States was eventually as being illegal. The Union's victory in the US Civil War also meant that slavery would be abolished in the US by the 13th amendment.
The North won!
Coldharbour in the Virginia theatre, or Kennesaw in the Western theatre, if you classify that as a major victory.
It represented the failure of Lee's second and last attempt to invade the North. His army was badly damaged, and never won a major victory after this.
Georgia. The last major Southern victory was that of Chickamauga, fought on Sept. 19-20, 1863.
The end of slavery in the USA.
Because it was the unions first major victory.
The North won!
The First major battle was Bull Run, where an expected Union victory was turned into a defeat
What was the result of the battle of Vicksburg
union survived. slaves were freed.
Because the North thought the war would be easy.
Gettysburg