Bleeding Kansas at English => English (The Britannica Concise) Of Explained:
Term applied to a period of civil unrest (1854-59) between proslavery and antislavery advocates for control of the new Kansas Territory. Under the doctrine of popular sovereignty, antislavery emigrants from the North clashed with armed proslavery groups from Missouri. In 1856 a proslavery raid and burning of a hotel and newspaper in Lawrence were followed by several murders instigated by antislavery radicals under J. Brown. Sporadic battles continued until Kansas was admitted to the Union as a free state in 1861.