1. In 1883, U.S. Supreme Court declared Civil Rights Act of 1875 unconstitutional. http://en.wikipedia.org/wiki/Civil_Rights_Act_of_1875
This decision was spurred by the end of Reconstruction and helped to usher in the Jim Crow era in the South whereby black rights won during Reconstruction were taken away.
2. In 1949, William Hastie nominated for the U.S. Circuit Court of Appeals. He was the first Black to sit on the court.
3. In 1968, Wyomia Tyus becomes the first person to win a gold medal in the 100 meter race in two consecutive Olympic games.
4. In 1991, Judge Clarence Thomas is confirmed as the 106th associate justice of the U.S. Supreme Court.