The document discusses several key events and issues surrounding the American Civil War:
1) Lincoln was faced with an ominous choice regarding how to respond to the secession of South Carolina and other southern states taking control of federal forts and property. He ultimately refused the southern demand to surrender Fort Sumter.
2) The southern attack on Fort Sumter was ultimately a positive for the North and Lincoln, as it rallied support for the Union cause.
3) The Border States of Kentucky, Missouri, Maryland, and Delaware were crucial because their allegiance could have tipped the war strongly in the South's favor if they had seceded.
4) Railroads and telegraph networks gave the North a