Where did the US Civil War started?

Answer 1

The first battle was on April 12th, 1861 at Fort Sumter, South Carolina. Which started the Civil War.
There was no actual declaration of war, since Congress did not recognise the Confederacy as a sovereign nation. (That's also why there was no peace treaty, only an armistice.)

The firing of Confederate guns on Fort Sumter is taken as the starting signal. Lincoln responded by calling for volunteer troops, which was the equivalent of declaring war.

But many people feel that the opening shots of the civil war were actually fired at Harper's Ferry in 1859 by John Brown. There was no actual declaration of war, since Congress did not recognise the Confederacy as a sovereign nation. (That's also why there was no peace treaty, only an armistice.)

The firing of Confederate guns on Fort Sumter is taken as the starting signal. Lincoln responded by calling for volunteer troops, which was the equivalent of declaring war.

But many people feel that the opening shots of the civil war were actually fired at Harper's Ferry in 1859 by John Brown.

Answer 2

The US's Civil War began in Charleston, SC. Confederate forces captured the main fort guarding the Charleston Harbor, Fort Sumter.