No one knows what happened to Lloyd Lionel Gaines. He was last seen in Chicago on March 19, 1939.
Three months before he went missing, on Dec. 12, 1938, the U.S. Supreme Court ruled in his favor in a case against the University of Missouri School of Law. The court said the school violated the constitution when it rejected Gaines' application because he was black.
Wednesday marks the 80th anniversary of the ruling.
Experts say his case could have done what Brown v. Board of Education did in 1954, and it would have been done 15 years earlier.