While the nation was riveted by President Barack Obama‚Äôs stirring tribute to the legacy of ‚ÄúBloody Sunday‚ÄĚ in¬†Selma, Ala.,¬†this past Saturday, the White House‚Äôs chief photographer, Pete Souza, was behind the scenes capturing some brilliant images of the historic day. He shares why the occasion was so meaningful in an essay at¬†Medium.com. Here are some of the photos he took.

Aboard Air Force One en route to Alabama, President Barack Obama signs H.R. 432, which authorizes the Congressional Gold Medal for the ‚Äúfoot soldiers‚ÄĚ who participated in Bloody Sunday, Turnaround Tuesday or the final Selma-to-Montgomery march during March 1965.¬†(Official White House photo by Pete Souza)
In Selma, President Obama greets former foot soldier Amelia Boynton Robinson, 103 years old, backstage before the ceremony. (Official White House photo by Pete Souza)
The president speaks to the foot soldiers who attended the 50th-anniversary event. (Official White House photo by Pete Souza)
President Obama hugs Yolanda Renee King, granddaughter of Martin Luther King Jr., as her parents, Martin Luther King III and Andrea Waters, look on. (Official White House photo by Pete Souza)

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First lady Michelle Obama and President Barack Obama hold hands as they listen to Rep. John Lewis (D-Ga.) speak at the ceremony. (Official White House photo by Pete Souza)
Members of the audience listen to Rep. John Lewis. (Official White House photo by Pete Souza)
President Obama hugs John Lewis after his introduction. (Official White House photo by Pete Souza)

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President Obama delivers remarks at the foot of the Edmund Pettus Bridge. (Official White House photo by Lawrence Jackson)
Tens of thousands of people attended the ceremony. (Official White House photo by Lawrence Jackson)
A Secret Service officer stands at his post as the president speaks. (Official White House photo by Pete Souza)

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Malia and Sasha Obama (front row, fourth and fifth from left) and other family, friends and White House staff listen to President Obama. Attorney General Eric Holder is at far left. (Official White House photo by Pete Souza)
President Obama points toward the Edmund Pettus Bridge during his speech. (Official White House photo by Pete Souza)
President Barack Obama and Rep. John Lewis hold hands during a prayer at the ceremony. (Official White House photo by Pete Souza)

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Former President George W. Bush (fourth from right) and former first lady Laura Bush (far left) participated in the program. (Official White House photo by Pete Souza)
The president greets members of the audience after his remarks. (Official White House photo by Pete Souza)
First lady Michelle Obama adjusts the bow in the hair of a young girl. (Official White House photo by Pete Souza)

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President Obama greets a youngster in the crowd. (Official White House photo by Pete Souza)
The president waves to the crowd. (Official White House photo by Pete Souza)
Backstage, former President George W. Bush talks with Sasha and Malia Obama and their grandmother Marian Robinson. (Official White House photo by Pete Souza)

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The Obama family join hands as they begin the march with the foot soldiers across the Edmund Pettus Bridge. (Official White House photo by Lawrence Jackson)
The march continues across the bridge. (Official White House photo by Pete Souza)
The Obama family and Attorney General Eric Holder (far right) and his family listen to tour guide Felicia Pittway at the National Voting Rights Museum. (Official White House photo by Pete Souza)

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The Obama family inspect a voting machine at the museum. (Official White House photo by Pete Souza)
President Barack Obama stands inside a replica prison cell at the museum. (Official White House photo by Pete Souza)
CBS-TV reporter Bill Plante, who covered Bloody Sunday 50 years ago, interviews the president at the museum. (Official White House photo by Pete Souza)

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President Obama, Michelle Obama, Marian Robinson and Malia Obama board Air Force One at Maxwell Air Force Base en route back to Washington, D.C. (Official White House photo by Pete Souza)