The Kansas-Nebraska Act of 1854 repealed the Missouri Compromise line, giving people in Kansas and Nebraska the choice whether to allow slavery in their states or not (i.e., popular sovereignty). This law produced bloody fighting in Kansas as pro- and antislavery forces battled each other. It also led to the birth of the Republican Party that same year to oppose the spread of slavery.
The student will apply social science skills to understand major events in Virginia and United States history during the first half of the nineteenth century by e) evaluating the cultural, economic, and political issues that divided the nation, including tariffs, slavery, the abolitionist and women’s suffrage movements, and the role of the states in the Union;
Sectional tensions caused by westward expansion
As new states entered the Union, compromises were reached that maintained the balance of power in Congress between “free states” and “slave states.”