Final answer:
Fort Sumter was located on an island in Charleston Harbor and it played a significant role in the start of the Civil War.
Step-by-step explanation:
Fort Sumter was located on an island in Charleston Harbor. It was a fort in the harbor of Charleston, South Carolina. The Union garrison at Fort Sumter came under siege by Confederate forces in an attack on April 12, 1861, which marked the beginning of the Civil War.
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