- 
  
  Fugitive Slave Act requires citizens to help catch runaway slaves.
http://www.nationalcenter.org/FugitiveSlaveAct.html - 
  
  Life among the lowly is an anti-slavery novel by Harriet Beecher Stowe. The novel helped ground work for the civil war.
https://en.wikipedia.org/wiki/Uncle_Tom's_Cabin - 
  
  It allowed people in the territories of Kansas and Nebraska to decide for themselves whether or not to allow slavery within their borders.
http://www.historyplace.com/lincoln/kansas.htm - 
  
  Abraham Lincoln is elected President.
https://www.britannica.com/event/United-States-presidential-election-of-1860 - 
  
  Confederate artillery pounded Fort Sumter for 34 hours. Facing shortages of food and ammunition, the Union Commander surrendered.
http://www.civilwar.org/battlefields/fort-sumter.html?referrer=https://www.google.com/ - 
  
  A Civil War engagement at Hampton Roads, Virginia a harbor at the mouth of James River notable as history's first duel between ironclad warships and naval warfare.
https://www.britannica.com/event/Battle-of-the-Monitor-and-Merrimack - 
  
  President Lincoln announces Plan of emancipation.
http://www.civilwar.org/battlefields/shiloh.html?referrer=https://www.google.com/ - 
  
  The Emancipation Proclamation freed enslaved people only in areas that were fighting the Union but it did not apply to the south.
http://www.civilwar.org/education/history/emancipation-150/10-facts.html - 
  
  All attempts at compromise having failed the United States endured a bloody four-year civil war. After the Battle of Gettysburg the war turned in favor of the Union army.
http://www.civilwar.org/battlefields/gettysburg.html?tab=facts - 
  
  The Thirteenth Amendment declares that neither slavery nor involuntary servitude is used unless its a punishment
https://www.loc.gov/rr/program/bib/ourdocs/13thamendment.html - 
  
  With Roberts army surrounded his men weak and exhausted he realized little choice but to surrender.
http://www.eyewitnesstohistory.com/appomatx.htm - 
  
  John Wilkes Booth assassinated Lincoln in the presidential's box at Ford's Theater in Washington D.C.
http://www.americaslibrary.gov/jb/civil/jb_civil_lincoln_1.html