Hiram Rhodes Revels, a Republican from Mississippi, is sworn into the United States Senate, becoming the first African American ever to sit in Congress.

Hiram Rhodes Revels was an American Republican politician, minister in the African Methodist Episcopal Church, and college administrator. Born free in North Carolina, he later lived and worked in Ohio, where he voted before the Civil War. Elected by the Mississippi legislature to the United States Senate as a Republican to represent Mississippi in 1870 and 1871 during the Reconstruction era, he was the first African American to serve in either house of the U.S. Congress.

The Republican Party, also known as the Grand Old Party (GOP), is a right-wing political party in the United States. One of the two major parties, it emerged as the main rival of the then-dominant Democratic Party in the 1850s, and the two parties have dominated American politics since then.

Mississippi is a state in the Southeastern and Deep South regions of the United States. It borders Tennessee to the north, Alabama to the east, the Gulf of Mexico to the south, Louisiana to the southwest, and Arkansas to the northwest. Mississippi's western boundary is largely defined by the Mississippi River, or its historical course. Mississippi is the 32nd largest by area and 35th-most populous of the 50 U.S. states and has the lowest per-capita income. Jackson is both the state's capital and largest city. Greater Jackson is the state's most populous metropolitan area, with a population of 591,978 in 2020. Other major cities include Gulfport, Southaven, Hattiesburg, Biloxi, Olive Branch, Tupelo, Meridian, and Greenville.

The United States Senate is a chamber of the bicameral United States Congress; it is the upper house, with the U.S. House of Representatives being the lower house. Together, the Senate and House have the authority under Article One of the U.S. Constitution to pass or defeat federal legislation.