Atlanta, Memphis mark 40 years of MLK history
Residents gather to see "I Have a Dream: The Morehouse College Martin Luther King Jr Collection" at the Atlanta History Center in 2006. The center on West Paces Ferry Road in Atlanta will host another exhibit, "Courage: The Vision To End Segregation, The Guts to Fight for It," about Brown v. Board of Education, through June 22. Phil Skinner / AJC file
