The 14th Amendment to the United States Constitution is a crucial piece of legislation in Black history. Ratified in 1868, the amendment granted citizenship to all individuals born or naturalized in the United States, including formerly enslaved people who had been freed after the Civil War.

The 14th Amendment also includes the Equal Protection Clause, which prohibits states from denying any person within their jurisdiction the equal protection of the laws. This clause has been instrumental in advancing civil rights and fighting against discrimination, including in landmark Supreme Court cases such as Brown v. Board of Education.

Additionally, the 14th Amendment's Due Process Clause has been used to protect various rights, including the right to privacy and the right to marry. Overall, the 14th Amendment has played a significant role in advancing equality and civil rights for Black Americans and other marginalized groups in the United States.