http://3.bp.blogspot.com/_bhPEbbKHewg/SSHLlaYaEPI/AAAAAAAAAh4/6NSdixTEyUA/s400/SE_US.jpg
http://www.vigorousnorth.com/2008/11/black-belt-how-soil-types-determined.html(http://www.autoadmit.com/thread.php?thread_id=3826717&forum_id=2#34903372)
The Black Belt name stuck around because so many of the slave families and their descendants never left. (http://www.autoadmit.com/thread.php?thread_id=3826717&forum_id=2#34903458)