Which significant event took place at Fort Sumter?

The significant event that took place at Fort Sumter was the beginning of the American Civil War. On April 12, 1861, Confederate forces fired on the Union-held fort in Charleston Harbor, South Carolina, after President Abraham Lincoln's decision to resupply it. The attack led to the fort's surrender and marked the official start of hostilities between the North and South. This confrontation symbolized the deep divisions in the nation over issues such as states' rights and slavery.