Answer:
First African American to serve in the U. S. Congress.
Step-by-step explanation:
Hiram Rhodes Revel was born on 27 September 1827 in Fayetteville, North Carolina. He was the first African American who served in the United States Congress, representing the states of Mississippi during the Reconstruction.
In 1870, Revel filled the vacant seat of the senate in the United States after being asked by the state congress. But his eligibility was questioned as he did not pass the criteria of nine-year citizenship. He was also a member of the Republican Party.
After being questioned of his citizenship, he and the members of Republicans cited of Revel being born in a mix race. After which he became the first African American to serve in the United States Senate.