None, except one accidental death from a powder-barrel that exploded.
there were no casualties except for a horse
There were only two casualties at the Battle of Fort Sumter at the beginning of the American Civil War. Both were Union Soldiers. One was killed during a planned 100-gun salute, and one was killed during evacuation. There were no Confederate casualties.
The garrison of Fort Sumter was of 80 men.
The combined garrisons of Fort Sumter and Fort Moultrie was 86 men.
80 union soldiers
Zero. One Union soldier died the next day due to an accident.
None, although one of them came close. One of the Confederate officers who went to discuss Fort Sumter's surrender accidentally drank from a bottle of poison (thinking it was whiskey) but Fort Sumter's surgeon saved his life with a stomach pump. And the only Union deaths were caused by one of their own cannon exploding as the US flag was lowered. Otherwise, Fort Sumter was a battle without casualties.
Seven
Total casualties, just one killed, I believe, and that was by accident. A Union gunner was killed by a barrel of powder igniting, just as they were firing the farewell salute.
There were 13 cannons at Fort Sumter.
There were no casualties suffered although during the evacuation on April 14 of 1861 a cannon fired earlier than it was supposed to during a salute fire. It killed one man and wounded three others
The Battle of Fort Sumter occurred from April 12, 1861 to April 14, 1861 in Charleston, SC. It was a Confederate victory and start of the Civil War. There were no deaths on either side.