Bayard Rustin, the openly gay activist and advisor to Martin Luther King Jr., would have turned 100 this year. To mark Rustin’s centennial, Atlanta’s Stonewall Month featured a three-part discussion of his legacy. “Lessons Learned: Then and Now” is based on the new book “I Must Resist: Bayard Rustin’s Life in Letters.” The session in these photos took place June 12, 2012, at Charis Books & More. (Photos by Dyana Bagby)