Antietam
The Battle of Antietam was known as Sharpsburg to the Confederate forces.
Antietam is a creek near Sharpsburg, MD. The Confederate name for the battle is Sharpsburg.
The Battle of Sharpsburg
Known to the Confederacy as Sharpsburg.
The Confederates called Antietam the Battle of Sharpsburg.
It is capitalized as it is a part of a proper name. It should be written as the Battle of Antietam. As another example without a capital letter: The Antietam battle was also called Sharpsburg. Note the small "b" here, as it is not in a proper name as with the first case.
The Battle of Antietam (Battle of Sharpsburg) .
The alternative name was the Battle of Sharpsburg. Both are reasonably good names: the battle was mainly fought in the area between the town of Sharpsburg and Antietam Creek.
The Confederates referred to the Battle of Antietam as the Battle of Sharpsburg. This name is derived from the nearby town of Sharpsburg, Maryland, where the battle took place on September 17, 1862. The battle is notable for being the bloodiest single-day engagement in American military history.
The battle at Sharpsburg was named Antietam after nearby Antietam Creek. Southerners prefer to call it The Battle of Sharpsburg.
Antietam Creek, near Sharpsburg, Maryland.
Battle of Sharpsburg, most Civil War Battles had two names one by the North and one by the South. The south called them by the towns near by. The north named battles for the closest body of water.