Fifty-seven years to the day after Dr. Martin Luther King Jr. stood on the steps of the Lincoln Memorial and delivered his "I Have a Dream" speech, civil rights activists are once more climbing the steps and demanding change.

The National Action Network and the Rev. Al Sharpton organized the "Commitment March: Get Your Knee Off Our Necks" event in response to the death of George Floyd in May at the hands of law enforcement.

The march is meant to be a commemoration of a seminal moment in US history -- one that demanded civil rights and economic opportunity.

On Friday, marchers will call on the Senate to pass police reform legislation named after Floyd, which the House approved in June. They will also call for dismantling systemic racism and for ensuring access to the ballot box, organizers said.

The Rev. Al Sharpton and Martin Luther King III lead marchers from the Lincoln Memorial to the Martin Luther King Jr. Memorial.
The Rev. Al Sharpton and Martin Luther King III lead marchers from the Lincoln Memorial to the Martin Luther King Jr. Memorial.
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Philonise Floyd, George Floyd's brother, becomes emotional as he speaks at the Lincoln Memorial.
Philonise Floyd, George Floyd's brother, becomes emotional as he speaks at the Lincoln Memorial.
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People march to the Martin Luther King Jr. Memorial.
People march to the Martin Luther King Jr. Memorial.
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Demonstrators gather next to the Martin Luther King Jr. Memorial after marching from the Lincoln Memorial.
Demonstrators gather next to the Martin Luther King Jr. Memorial after marching from the Lincoln Memorial.
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Jacob Blake Sr., father of Jacob Blake, raises his fist as he speaks at the Lincoln Memorial.
Jacob Blake Sr., father of Jacob Blake, raises his fist as he speaks at the Lincoln Memorial.
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The Rev. Al Sharpton speaks at the Lincoln Memorial on August 28.
The Rev. Al Sharpton speaks at the Lincoln Memorial on August 28.
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Demonstrators gather at the Lincoln Memorial on Friday, August 28.
Demonstrators gather at the Lincoln Memorial on Friday, August 28.
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Tamika Palmer, Breonna Taylor's mother, speaks at the Lincoln Memorial.
Tamika Palmer, Breonna Taylor's mother, speaks at the Lincoln Memorial.
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A boy cools off in the Lincoln Memorial's Reflecting Pool as Martin Luther King III speaks.
A boy cools off in the Lincoln Memorial's Reflecting Pool as Martin Luther King III speaks.
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Yolanda Renee King speaks with her father, Martin Luther King III, at her side at the Lincoln Memorial. Both King III and his daughter spoke from the exact spot where their father and grandfather, Martin Luther King Jr., spoke in 1963.
Yolanda Renee King speaks with her father, Martin Luther King III, at her side at the Lincoln Memorial. Both King III and his daughter spoke from the exact spot where their father and grandfather, Martin Luther King Jr., spoke in 1963.
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Martin Luther King III speaks to the crowd at the Lincoln Memorial in Washington.
Martin Luther King III speaks to the crowd at the Lincoln Memorial in Washington.
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Martin Luther King III stands next to his daughter Yolanda Renee King as she speaks.
Martin Luther King III stands next to his daughter Yolanda Renee King as she speaks.
Jonathan Ernst/Pool/AP
The crowd listens to speeches at the Lincoln Memorial.
The crowd listens to speeches at the Lincoln Memorial.
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The Rev. Al Sharpton arrives to speak at the Lincoln Memorial.
The Rev. Al Sharpton arrives to speak at the Lincoln Memorial.
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The 4-year-old daughter of Marqueese Alston, who was shot and killed by Washington's Metropolitan Police on June 12, 2018, holds a photograph of her father as demonstrators gather at the Lincoln Memorial.
The 4-year-old daughter of Marqueese Alston, who was shot and killed by Washington's Metropolitan Police on June 12, 2018, holds a photograph of her father as demonstrators gather at the Lincoln Memorial.
Jonathan Ernst/Pool/Reuters
Demonstrators walk to the Lincoln Memorial.
Demonstrators walk to the Lincoln Memorial.
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Rep. Ayanna Pressley speaks at the Lincoln Memorial.
Rep. Ayanna Pressley speaks at the Lincoln Memorial.
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People watch and listen to speakers at the Lincoln Memorial.
People watch and listen to speakers at the Lincoln Memorial.
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Attendees sit socially distanced from one another on the National Mall.
Attendees sit socially distanced from one another on the National Mall.
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A man has his temperature taken before entering the event space at the Lincoln Memorial.
A man has his temperature taken before entering the event space at the Lincoln Memorial.
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The early morning sun rises over the Washington Monument and the Lincoln Memorial's Reflecting Pool as final preparations are made for the March on Washington.
The early morning sun rises over the Washington Monument and the Lincoln Memorial's Reflecting Pool as final preparations are made for the March on Washington.
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