Lloyd L. Gaines vanished in March 1939. "Three months before he vanished, he won a U. S. Supreme Court decision (Gaines v. Canada) mandating the State of Missouri admit him into its university law school or build a separate, and equal, law school for blacks. The case helped forge the legal framework for the U.S. Supreme Court's landmark 1954 decision, Brown v. Board of Education, which banned segregation in public schools.
2000 Years of Chinese History! The Mandate of Heaven and Confucius | Oh, so that’s where that comes from! (the ancient Greeks, Persians, Indians, Chinese & the trade between them. Oh, and also the Romans) | Khan Academy