Northerners must have an excuse to justify the invasion of the South and waging a war that cost the lives of 620,000 men and the murder of 50,000 Southern civilians. Not to mention the burning and destruction of the South. It makes them feel better.

Maybe they ignore the fact or dont even know that slavery was alive and well in the North during the war. Lincolns family, through marriage, owned slaves, Northern Generals Grant and Sherman also owned slaves.

The "Emancipation Proclamation" that many Northerners are so proud of to justify their murderous and illegal aggression towards the South, only freed slaves held in the Confederate states. Norhthern slaves remained slaves until after the war.