ok - then most 9th graders would know that slavery was explicitly illegal in many US States from the day before they were founded.. Race-based slavery is not at all unique to the USA. Only people who do not know history think otherwise.. So this commentor a)does not know 9th grade level US history, and b) does not know high school level world history.
yes agree - education is an exercise for the reader.. you have to actually read something to learn from books.
You had a week to deliberate and digest this thread, and your retort shows you do not know what prima facie is.
And yes, slavery is not an American invention. But this topic is about American culture in regards to police and how they harass people (with a bias towards minorities) in "legal ways".
Again, hard to cover all the subtleties in HN. Research Jim Crow laws as a starting point for research.
yes agree - education is an exercise for the reader.. you have to actually read something to learn from books.