Walter E. Washington is a prominent figure in Black history as he was the first African American mayor of Washington, D.C. He served as mayor from 1975 to 1979, during a crucial period of the city's history. Prior to becoming mayor, Washington had a distinguished career in public service, including serving as the Executive Director of the National Capital Housing Authority and as the first Chair of the federal City Council of the District of Columbia.

As mayor, Walter E. Washington played a key role in the city's efforts to achieve greater self-governance and autonomy. He also focused on improving city services and promoting economic development in Washington, D.C. Washington's leadership paved the way for future African American mayors in the city and helped to shape the political landscape of the nation's capital.

Overall, Walter E. Washington's legacy in Black history is significant as he broke barriers and made important contributions to the advancement of African Americans in politics and public service.