A unique and politically significant feature of Abraham Lincoln's victory in the 1860 election was that he...

won the election despite losing the popular vote.

was the youngest person ever elected president.

won the presidency without carrying a single Southern state.

ran on a platform of granting all states the right to secede.

What was the immediate consequence of the Confederate attack on Fort Sumter in April 1861?

The election of Abraham Lincoln

The secession of South Carolina

The formation of the Confederacy