ᎯᎠ ᏗᎪᏍᎩ ᎠᏙᏱᏯᏛ ᎠᎬᏩᎵ crisis Ꮎ culminated ᎭᏫᎾᏗᏢ secession stemmed ᏂᏛᎴᏅᏓ ᎠᏗᏒᏍᏗ ᎦᏬᎯᎸᏙᏗ ᎯᎠ ᎤᏚᏃᎯᏍᏔᏍᎧ slavery ᎾᎾᎯ ᎢᏤ territories. ᎭᏫᎾᏗᏢ ᎯᎠ ᏨᎫᎵ ᎣᏍᏛ ᎢᎬᏁᏗ 1820, ᎪᎯ ᎣᏍᏛ ᎢᎬᏁᏗ ᏄᏘᏴᎾ ᎯᎠ ᎤᎳᏂᎬᎬ ᎭᏫᎾᏗᏢ ᏩᏥᏂ ᏗᏂᎳᏫᎩ, ᎾᎥᎢ adding ᎺᏂ ᏥᏄᏍᏗ ᎠᏎᏊᎢ ᎤᏔᏂᏗ ᎦᏙᎯ, ᎠᎴ ᏨᎫᎵ ᏥᏄᏍᏗ ᎠᏥᎾᏝᎢ ᎤᏔᏂᏗ ᎦᏙᎯ. ᎤᏅᏌ ᎾᏍᎩ ᎾᏍᏇ prohibited slavery ᎭᏫᎾᏗᏢ ᎯᎠ ᏩᎵᏃᎯᏯᏍᎬ ᎯᎠ ᎷᏫᏏᎡᎾ ᎠᏩᎯᏍᏗ ᎤᏴᏢ 36°30'N lat. (ᎯᎠ ᎤᎦᎾᏭ ᎢᏗᏢ ᎠᏍᏓᏅᏅ ᏨᎫᎵ). ᎯᎠ ᎠᏯᏍᏗ ᎠᎩᏍᏗ ᎤᎪᏗᏗ ᎢᏤ ᏗᎦᏙᎯ ᎤᎶᏐᏅ ᎯᎠ ᎠᏍᏆᏂ ᏓᏄᏩ (1846–1848), ᏱᏂᎬᏛᎾ, reopened ᎯᎠ ᏗᏟᏴ ᏗᎦᏬᏂᎯᏍᏗ—ᎾᏊ focused ᎾᎿ ᎯᎠ ᎧᏁᎢᏍᏔᏅ Wilmot Proviso, ᎦᏙ ᎤᏍᏗ ᏯᏓᎢᏗᏏ ᎤᎭ banned slavery ᎭᏫᎾᏗᏢ territories annexed ᏂᏛᎴᏅᏓ ᎠᏂᏍᏆᏂᎢ. ᎤᏁᎳᎩ ᎾᏍᎩ ᎾᏍᏊ ᎾᏍᎩ ᎥᏝ ᎤᎶᏒᎩ, ᎯᎠ Proviso aroused ᎤᎭᎿᎸ ᏗᏟᏴ ᏗᎦᏬᏂᎯᏍᏗ. Northerners argued Ꮎ slavery ᏯᏓᎢᏗᏏ ᎠᏓᏁᎳᏁᏗ ᏂᏚᏳᎪᏛᎾ ᎠᏓᎪᏅᏙᏗᏱ ᎾᏍᎩᎾᎢ ᎠᏎᏊᎢ migrants ᎯᎠ territories; slaveholders ᎠᏆᏤᎵ ᎤᏛᏅᎩ ᏩᏥᏂ ᏗᏂᎳᏫᎩ ᎠᏰᎲ Ꮭ ᏚᏳᎪᏛ discriminate ᏗᎦᏘᎴᎩ ᎠᏂ ᎾᎥᎢ preventing ᎠᏂ ᏂᏛᎴᏅᏓ ᎠᏲᎯᎲ ᎤᎾᏤᎵ ᎧᎵᏗᎳᏏᏗ ᏧᎬᏩᎶᏗ ᏂᎬᎿᏅ ᎾᎿᎢ. ᎯᎠ ᎠᏗᏒᏍᏗ ᎤᏗᏅᏒᎩ ᎠᏍᏚᎢᏛ ᏓᎾᏩᏄᏁᎯ ᎭᏫᎾᏗᏢ ᎯᎠ ᏧᏂᎦᏔᏩᏙᏅᏩᏙᏗ ᎾᎿ ᎨᏒ ᎤᎶᏐᏅ ᎾᏍᎩ ᏥᏄᏍᏛᎩ ᎤᎾᏙᏢᏅᎯ ᎾᎥᎢ ᎯᎠ ᏧᏂᎦᏔᏩᏙᏅᏩᏙᏗ-ᏎᎷᏱ ᎢᏯᏛᏁᎯ 1854. ᎪᎯ ᎢᏯᏛᏁᎯ repealed ᎯᎠ prohibition ᎾᎿ slavery ᎾᎿᎢ ᎭᏫᎾᏗᏢ ᎯᎠ ᏨᎫᎵ ᎣᏍᏛ ᎢᎬᏁᏗ, ᎠᎴ ᏩᏗᏱ ᎯᎠ ᎢᏳᏓᎵᏍᏓᏁᏗ slavery ᎭᏫᎾᏗᏢ ᎯᎠ ᏧᏃᏰᏂ ᎯᎠ ᎾᎿ ᎨᏒ ᎤᏤᎵ settlers, ᏧᎵᎬᏩᎳᏅᎯ ᎤᎾᏅᏛ ᏥᏄᏍᏗ ""ᎤᏂᎸᏉᏗ sovereignty."" ᏓᎾᎵᎲ erupted ᎠᏰᎵ pro slavery ""ᎠᏟᎶᏛ ᎬᎪᏛ ruffians"" ᏂᏛᎴᏅᏓ neighboring ᏨᎫᎵ ᎠᎴ antislavery immigrants ᏂᏛᎴᏅᏓ ᎯᎠ ᎤᏴᏢ (ᎠᏠᏯᏍᏗᏍᎩ John ᏬᏗᎨ, ᏄᎾᏛᏅ ᏐᎢ abolitionists). ᎢᏯᏍᎪᎯᏧᏈ ᎨᏒᎩ ᎠᏥᎸᎩ ᎠᎴ ᎠᏥᏐᏅᏅᎯ. Tensions ᎠᏰᎵ ᎤᏴᏢ ᎠᎴ ᎤᎦᎾᏭ ᎾᏊ ᎨᏒᎩ ᎬᏂᎦᎳᏍᏗ ᎦᎾᏰᎩ.