Answer: C
Explanation: the Nebraska act allowed popular sovereignty.
Jay Treaty. That's what it said was right when I took it.
The correct answer should be <span>the </span>Battle<span> of Gettysburg which happened in Pennsylvania, and then in July happened the Fall of Vicksburg in M</span><span>ississippi. These two battles discouraged the confederacy and showed that the war was almost over. Soon after the confederacy surrendered because they could no longer fight the war.</span><span />