Washington D.C. has a rich Black history that dates back to the city's founding. The District of Columbia has been an epicenter for Black culture, activism, and achievement for centuries. Here are some key points about Washington D.C. in Black history:

1. The city was home to a thriving free Black community even before the Civil War. Enslaved people often sought refuge in the District, as it was a hub of abolitionist activity.

2. In 1862, President Abraham Lincoln signed the Emancipation Proclamation in Washington D.C., freeing enslaved individuals in the Confederacy. The city became a symbol of freedom for many Black Americans.

3. Howard University, a historically Black institution, was established in Washington D.C. in 1867. It has played a major role in educating and empowering Black leaders in various fields.

4. The U Street corridor, also known as "Black Broadway," was a vibrant cultural and entertainment hub for Black residents during the early to mid-20th century. It was home to famous jazz clubs, theaters, and businesses owned by Black entrepreneurs.

5. The Civil Rights Movement had a significant presence in Washington D.C., with the March on Washington for Jobs and Freedom taking place in 1963. This historic event, where Martin Luther King Jr. delivered his famous "I Have a Dream" speech, drew hundreds of thousands of participants to the National Mall.

6. Marion Barry, a prominent civil rights activist, became the first Black mayor of Washington D.C. in 1979. He served multiple terms and was a key figure in the city's political landscape.

7. The District has been represented by notable Black politicians, including former Mayor Muriel Bowser and Congresswoman Eleanor Holmes Norton, who has been a strong advocate for D.C. statehood.

Overall, Washington D.C. has been a center of Black culture, activism, and political leadership, making significant contributions to American history and society.