The U.S. Treasury this week announced that it was making a change, starting in 2020, to the 20-dollar bill. For many years, the image of Andrew Jackson, President of the U.S. from 1829 to 1837, has appeared on the bill. He is to be replaced by Harriet Tubman, former slave and active abolitionist hero from before and during the U.S. Civil War.
Some (e.g., Trump) would call this "political correctness", but the irony is outstanding. Here is an African-American woman who risked her life many times to help slaves get to freedom (the "Underground Railroad") taking the place of a man who actually owned slaves.
Out of curiosity, I googled the phrase "presidents that owned slaves" and found the list. There were twelve U.S. Presidents that owned slaves. George Washington ("the Father of Our Country") owned more than 300 slaves and did not free them during his lifetime.
Amazing. And this was only a couple hundred years ago.