1854 - 1861, slavery issue (jan 16, 1854 – jun 16, 1861)
Series of violent civil clashes in United States between 1854 and 1861. Clashes emerged from a pollitical and ideological depate over that should Kansas be a free or slave state. Clashes were fought between proslavery and antislavery advocates.
Added to timeline:
Timeline: Causes of the American Civil war by Veera Rakkolainen