Photos: Opening of African-American museum in D.C.

WASHINGTON, DC - SEPTEMBER 24: Rehearsal of the music program by the U.S. Army Herald Trumpets before President Obama attends the dedication of the National Museum of African American History and Culture September 24, 2016 in Washington, DC, before the museum opens to the public later that day. The museum is a Smithsonian Institution museum located on the National Mall featuring African American history and culture in the US. (Photo by Astrid Riecken/Getty Images)
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