After the Confederate attack on Fort Sumter, the Union surrendered in less than two days, with Beauregard's ordered bombardment leading to Anderson's surrender by April 13, 1861.
After Confederate troops opened fire on Fort Sumter, it took about less than two days for the Union to surrender. Confederate General P. G. T. Beauregard ordered the bombardment on April 12, and Major Anderson surrendered on April 13, with the formal transfer of the fort occurring on April 14, 1861.
https://brainly.com/question/3465182