Alpha Phi Alpha Fraternity, Inc. Kicks-off the Martin Luther King, Jr. Memorial Weekend In Washington, D.C. With Commemorative Events on August 25 - 27 BALTIMORE, Aug. 19, 2011 (GLOBE NEWSWIRE) -- The world's oldest intercollegiate fraternity founded by African-American men—Alpha Phi Alpha Fraternity, Inc.—will honor Dr. Martin Luther...