1600s - 1860s (almost 300 years)
"Black people are property I have the right to own. A right I will fight for"
1860s-1960s (100 years)
"Ok fine not slaves. But look how poor and uneducated they are. And the CRIME! - keep them all separate from us."
2020 (60 years later)
"I'm the least racist person you'll ever meet. Also this whole 'white privilege' thing is propaganda!!"