When did Lincoln declare that there was an insurrection in the South?

when Jefferson Davis was chosen as Confederate President
when South Carolina forced the surrender of Fort Sumter
when the South first seized federal forts within its borders
le filtre
when seven states seceded from the Union

When South Carolina forced the surrender of Fort Sumter.

Explanation:

This event is also taken as the official start of the Civil War. For more than thirty hours, the Confederacy bombed Union forces that eventually surrendered Fort Fort Sumter in Charleston Harbor, South Carolina. So the real war activity in the civil war resulted in the rebels winning. This turnout contributed to the secession of South Carolina. One of the darkest periods in American history is about to begin.

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