coincidence, or causality?

From CNN.com:

ASHBURN, Georgia (CNN) -- Students of Turner County High School started what they hope will become a new tradition: Black and white students attended the prom together for the first time on Saturday.

In previous years, parents had organized private, segregated dances for students of the school in rural Ashburn, Georgia, 160 miles south of Atlanta.

[...]Mindy Bryan, attended a segregated prom in 2001.

"There was not anybody that I can remember that was black," she said. "The white people have theirs, and the black people have theirs. It's nothing racial at all."

I hope one of the songs is Prince singing about how "Tonight we're gonna party like it's 1969."