She discovered a a skull fossil of an ancestor of apes and humans
The solution the Kansas-Nebraska Act of 1854 offered to the problem of slavery was to allow both states to determine their slave or free state status via popular vote. However, both states were widely uninhabited at the time of their admittance and thus a huge number of settlers from free and slave states swarmed upon the states to sway the vote in their favor. This resulted in tragedy in the form of attacks where free and slave supporters clashed in violent and oftentimes deadly confrontation.
