Фундамент США
В принципе, всё, что вам нужно знать о США заложено в их фундаменте - "On September 22, 1862, Lincoln had issued a preliminary proclamation warning that he would order the emancipation of all slaves in any state that did not end its rebellion against the Union by January 1, 1863. None of the Confederate states restored themselves to the Union, and Lincoln's order, signed and issued January 1, 1863, took effect."https://en.wikipedia.org/wiki/Emancipation_Proclamation
Прокламация об освобождении рабов освобождала рабов _только_ на территориях, где США не имели власти.