may 30, 1854 - Kansas-Nebraska Act
May 30 1854, slavery and states'
Act that allowed for new territories to decide if they were a free or slave states by popular vote. It unded the compromise that was made in the Missouri Compromise. It also reignited the disagreement between pro and anti slavery factions.
Added to timeline:
Timeline: Causes of the American Civil war by Veera Rakkolainen