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        A federal legislation in 1820, made Missouri a slave state to balance the free & slave states. - 
  
  
        A rebellion that took place in 1831, to dismantle and overthrow slavery. - 
  
  
        A proposal made in 1846, an attempt to propose to ban slavery in Mexico from the Mexican-American War. - 
  
  
        The conflict between the United States & Mexico over vast territories. Took place in Texas, Mexico during the mid 1840s. - 
  
  
        A gold rush took place in California in 1848. That lasted for about 7 years. For the search for gold. - 
  
  
        An organized network, used to take slaves to their freedom during the 1840s & 1850s. - 
  
  
        Series of measures to settle issues connected to slavery in 1850. To maintain the balance free & slave states when new states were added. - 
  
  
        An Act that became part of the Compromise of 1850, which mandated that (escaped) slaves must be returned to their owners. - 
  
  
        An anti-slavery novel, published in 1852, that focuses on the struggles of being a slave, based on how his life was. - 
  
  
        A series of violent confrontations in Kansas, between 1854 & 1859. - 
  
  
        An Act made in 1854, to organize the terrortories of Nebraska & Kansas and allowed for popular sovereignty. - 
  
  
        A landmark decision in 1857, where the Supreme Court ruled that Americans of African descent. - 
  
  
        The debates between Lincoln & Douglass in 1858, over the extension of slavery into American territories. - 
  
  
        An effort in 1859, to initiate a slave revolt in Southern states. - 
  
  
        Candidates for president for the 1860 election, between Lincoln, Bell, Douglas, & Breckinridge. - 
  
  
        An event that happened in late 1860, due to the 1860 presidential election triggered cries for disunion across the slaveholding South.