15h 35min, may 30, 1854 y - Kansas-Nebraska Act
Description:
This act allowed Kansas and Nebraska to decide for themselves whether or not they wanted to be a slave or free state. Obviously, this created much controversy, as Border Ruffians would stand on the borders, armed and ready to shoot anyone who opposed slavery.
Added to timeline:
Date:
15h 35min, may 30, 1854 y
Now
~ 171 years ago