How about making every year "American History Year"?
I remember a high school assembly in '70. The only ones allowed in were the "negroes", when they came out they wanted to be called "black". The demeanor they exhibited the rest of the day was of open hostility, physically bumping into me and my group of friends, and laughing about it. This was a small high school, one of them was a neighbour of mine, that walked to school with me daily, and hung with me during lunch. That never happened again, and in fact, during a intramural touch football game, the "black" team, (of course allowed to be formed by the coach) played our team, they wore real metal cleats, and purposely used them during play, (an occurrence ignored by faculty) and razzed our team with racist taunts. Thanks civil rights movement, you turned neighbours and friends into opposites and enemies.