Wow, a 12 year old doesn't know about slavery? We just talked to Kira (5 years old) about slavery last night (after watching a Simpsons Halloween special where Kang and Kodos enslaved humanity--she wanted to know why they were forcing the Simpsons to work, and then we told her they were slaves, and that a similar thing happened in our country a long time ago. And gave her an age-appropriate historical description of slavery in the US). She was pretty horrified, as she should be, because it was horrific. I can't imagine my kid being 12 and never hearing about that...

Edited to change my icon. I'd used a Halloween icon of M dressed up as a ghost from last year, but then along with that comment, it looked like she was actually a KKK member or something. White robe and hood and all. GHOST, I SWEAR!