The U.S. Congress has had a significant impact on Black history, with many notable Black leaders making their mark within its halls. Some key moments in Black history related to the U.S. Congress include:

1. Reconstruction Era: During the Reconstruction period following the Civil War, several African Americans were elected to Congress. These individuals, such as Hiram Rhodes Revels and Blanche K. Bruce, were among the first Black senators and representatives in U.S. history.

2. Civil Rights Legislation: Throughout the 20th century, Black members of Congress played a key role in advocating for and passing civil rights legislation. One of the most well-known figures in this regard is John Lewis, a civil rights icon who served in Congress for over three decades.

3. Congressional Black Caucus: The Congressional Black Caucus was founded in 1971 and has been instrumental in promoting the interests of African Americans in Congress. The caucus has advocated for issues such as economic justice, criminal justice reform, and healthcare access for marginalized communities.

4. Historic Moments: In recent years, there have been several historic moments involving Black members of Congress, such as the election of Kamala Harris as the first Black and South Asian woman Vice President of the United States and the appointment of Kamala Bass as the first Black woman to serve as Speaker of the House.

Overall, the U.S. Congress has been a battleground for advancing the rights and representation of African Americans throughout history, with Black leaders making significant contributions to legislation and policy-making that have shaped the course of Black history in the United States.