50th anniversary of the March on Washington (49 images)

People gather at the Martin Luther King Jr. Memorial during a march commemorating the 50th Anniversary of the March on Washington and Dr. Martin Luther King Jr.'s "I have a Dream' speech, near the Lincoln Memorial in Washington, D.C. on August 24, 2013. Tens of thousands civil right's supporters gathered on the National Mall to celebrate the 50th Anniversary. UPI/Kevin Dietsch

People gather at the Martin Luther King Jr. Memorial during a march commemorating the 50th Anniversary of the March on Washington and Dr. Martin Luther King Jr.'s "I have a Dream' speech, near the Lincoln Memorial in Washington, D.C. on August 24, 2013. Tens of thousands civil right's supporters gathered on the National Mall to celebrate the 50th Anniversary. UPI/Kevin Dietsch

People participate in a march commemorating the 50th Anniversary of the March on Washington and Dr. Martin Luther King Jr.'s "I have a Dream' speech, near the Lincoln Memorial in Washington, D.C. on August 24, 2013. Tens of thousands civil right's supporters gathered on the National Mall to celebrate the 50th Anniversary. UPI/Kevin Dietsch

Civil rights leader, left to right, Dexter King, Rep. john Lewis (R-GA), Rev. Al Sharpton, Rev. Jesse Jackson and Martin Luther King III participate in a march commemorating the 50th Anniversary of the March on Washington and Dr. Martin Luther King Jr.'s "I have a Dream' speech, near the Lincoln Memorial in Washington, D.C. on August 24, 2013. Tens of thousands civil right's supporters gathered on the National Mall to celebrate the 50th Anniversary. UPI/Kevin Dietsch