Smithsonian

More than 15 years after it was first established, the National Museum of African American History and Culture opens on the National Mall on September 24, 2016. Barack Obama, the nation’s first African American president, leads the ceremony and officially opens the museum by ringing the Freedom Bell, a bell from an African American Baptist church founded in 1776.

As far back as 1915, there had been proposals for a museum recognizing the achievements of African Americans. In 1929, President Herbert Hoover approved a commission to create such an institution, but it never received funding. Various attempts were made to pass legislation establishing a museum through Congress, including multiple bills introduced by Georgia congressman and civil rights icon John Lewis, but even after the Board of Regents of the Smithsonian Institution joined the effort in the 1990s it still took more than a decade.

Source: history.com