One of the nation’s most well known, and controversial, civil rights activists the Rev. Al Sharpton Jr. is coming to Sarasota. Sharpton, also a television and radio personality, is scheduled to give a keynote address to the Howard Club of Southwest Florida’s 10th annual scholarship luncheon on March 28. At the same event, the Howard Club will honor boxing promoter Don King, famous for working with some of the biggest names in professional boxing, including Muhammad Ali, Joe Frazier, George Forman and Mike Tyson.