There have been several significant moments in Black history related to the U.S. presidency:

1. **Barack Obama** - Barack Obama made history in 2008 as the first African American to be elected President of the United States. He served two terms from 2009 to 2017, and his presidency was marked by numerous milestones, including the passage of the Affordable Care Act, also known as Obamacare.

2. **Kamala Harris** - In 2021, Kamala Harris made history as the first woman, first Black woman, and first person of South Asian descent to be elected Vice President of the United States. She serves as the 49th Vice President under President Joe Biden.

3. **Shirley Chisholm** - In 1972, Shirley Chisholm became the first African American woman to run for President of the United States as a major party candidate. She sought the Democratic nomination and paved the way for future generations of Black women in politics.

4. **Frederick Douglass** - While not a president, Frederick Douglass was a prominent African American abolitionist, author, and statesman who advised several U.S. presidents, including Abraham Lincoln. His influence on American history and the presidency is significant.

These are just a few examples of the impact of Black individuals on U.S. presidential history.