The U.S. Presidency in Black history has been a complex and often tumultuous relationship. Throughout American history, there have been several significant milestones involving Black individuals and the presidency:

1. In 1870, during Reconstruction, Hiram Rhodes Revels became the first African American to serve in the U.S. Senate. While not a President, his election marked a significant step towards political representation for Black Americans.

2. In 2008, Barack Obama made history by becoming the first African American president of the United States. His election marked a milestone in the civil rights movement and inspired many people around the world.

3. The Civil Rights movement of the 1960s had a significant impact on the presidency, with President Lyndon B. Johnson signing the Civil Rights Act of 1964 and the Voting Rights Act of 1965, which were key pieces of legislation that advanced the rights of Black Americans.

4. Black Americans have played key roles in various presidential administrations as advisors, cabinet members, and other positions of influence. For example, Susan Rice and Loretta Lynch both served as U.S. Attorney General.

Overall, the relationship between the U.S. Presidency and Black history reflects the ongoing struggle for racial equality and representation in American politics. Despite significant progress, there is still much work to be done to address issues of systemic racism and inequality in the United States.