Marekani yaadhimisha miaka 50 ya maandamano ya Washington

Dr. Martin Luther King Jr. akiwapungia mkono maelfu ya watu walowasili kwenye makumbusho ya Lincoln kusikiliza hotuba yake ya "I Have a Dream" wakati wa maandamano kelekea Washington, D.C. Aug. 28, 1963 file photo.

Mtali anagusa mahala halisi ambapo Kasisi Martin Luther King Jr., alitoa hotuba ya kihistoria ya 'I Have a Dream' Kwnye makumbusho ya lincoln Memorial mjini Washington, Aug. 22, 2013.

Rev. Al Sharpton (2nd R) lakishikana mkono na Mbunge John Lewis (D-GA) karibu na Martin Luther King III (R) wanapoanza maandamano ya kuadhmisha miaka 50 ya Maandamano ya  Washington mwaka1963, safari hii wakidai ajira na uhuru mbele ya makumbusho ya Lincoln mjin Washington, Aug. 24, 201

Crowds rally at the Lincoln Memorial in Washington to commemorate the 50th anniversary of the 1963 March on Washington, Aug. 24, 2013.

Marchers gather along the reflecting pool on the National Mall during the 50th anniversary of the 1963 March on Washington for Jobs and Freedom at the Lincoln Memorial in Washington Aug. 24, 2013.

Rev. Bobby Turner or Columbus, Ohio, places his hand on the Martin Luther King Jr. Memorial, Aug. 22, 2013, in Washington.

A marcher holds an U.S. flag bearing the image of President Barack Obama during the 50th anniversary of the 1963 March on Washington for Jobs and Freedom at the Lincoln Memorial in Washington Aug. 24, 2013.

Crowds line the Reflecting Pool to watch the 50th anniversary ceremony of the 1963 March on Washington ceremony, with the Washington Monument in the backround, Aug. 24, 2013.

U.S. Park Police watch over the Lincoln Memorial during sunrise early in the morning before the start of the ceremony honoring the 50th anniversary of the 1963 March on Washington, Aug. 24, 2013.

Marchers file towards their seats at the ceremony at the Lincoln Memorial honoring the 50th anniversary of the 1963 March on Washington, Aug. 24, 2013.

Marchers pose for pictures as they commemorate the 50th anniversary of the 1963 March on Washington for Jobs and Freedom at the Lincoln Memorial in Washington, Aug. 24, 2013.

A marcher holds a sign as she attends the 50th anniversary of the 1963 March on Washington for Jobs and Freedom at the Lincoln Memorial in Washington, Aug. 24, 2013.

The Martin Luther King Jr. Memorial in Washington, Aug. 22, 2013.