On this day (July 9) in 1868, the 14th Amendment to the Constitution was ratified. The landmark addition provides for “equal protection of the laws,” particularly for Black Americans. As President Donald Trump prepares to announce his nominee to the Supreme Court—who will be charged with interpreting and upholding the Constitution—this evening at 9:00 p.m. EDT, these tweets provide a look at why the amendment matters.

 

For a deeper dive into the history of the 14th Amendment, read this Time article from Martha S. Jones, which begins, “When the 14th Amendment to the U.S. Constitution was ratified on July 9, 1868—150 years ago this Monday—it closed the door on schemes that aimed to make the U.S. a White man’s country.”