Slavery had nothing to do with the Civil War. That's. Nothing. Slavery had as much to do with the Civil War as politics did with the shooting of Gabrielle Gifford. They lied then. They're lying now. You can tell when they are lying. Their lips move.
The Southern States were being crushed to death by taxation. It was breaking their backs with tariffs and custom duties that the nation had gone to war against the British to put an end to. The North was establishing the regime that became the wonderful monster called the State that led to the Federal Reserve and a lot of people decided they didn't want any part of it.
The Washington Post is well aware that counter programming in the form of historical truth has now been surging because of the internet and they are trying to counter that counter programming with more lies.
Here's two important things to do:
1. Don't buy, read or subscribe to the Washington Post.
2. See #1 above.
The mass media is finished but just like Dracula, it's not enough to drive a stake through it's heart. You have to separate the head from the body and bury the creature deep to assure it will never rise again.