Abraham Lincoln owned slaves...
I think more information should be presented on that.
I'd post a link to several good sources for you, but they all point to sites that show alt-right idiots that promote this in not-full context, and quickly veer off into politics, so look it up if interested, but no politics here, please.
Abe's wife, Mary Todd Lincoln, was the daughter of a salve owner. She never owned slaves herself. When her father died, she was a married woman, and married women in Kentucky at that time didn't get the inheritance, their husband did. So as soon as her father died, Abe became a slave owner by default. He never bought slaves. They were forced upon him by Kentucky law.
What happened to them afterwards is a guess, because most of the documents regarding the settlement of the estate with all of Mary's other relatives, have either been scattered to the winds or destroyed. He could have freed them. There's no record of that. He most likely sold them and other estate assets through the lawyers in Kentucky handling the estate. It's a logical assumption, but there are no records of that either. Or he could have gifted or traded them to other members of the Todd family for other assets in the estate, but again no records of that either.
Lincoln in general is a fascinating person to read about. His views on things over the span of his life, how he had to balance friends and foes, ideas with his conscience, etc. History is great. Keeping it in context is important. Finding things out that were previously not known is not rewriting history. It's telling the truth.
Anyhow, spend a rainy afternoon reading on this subject some time. It's fascinating.