You forgot "bought African slaves from Africans and then after a horrific civil war in which hundreds of thousands of white people died, freed the slaves and outlawed slavery forever."<quoted text>
Basically. You just summed up USA History in 7 words.
There. Fixed it for you.
But feel free to focus on the negative, live in the past, ignore the black President, the black Supreme Court justice, the black millionaires, lawyers, doctors, teachers, professors, military heroes, and everyone else who lives in the freedom of the present.