Homer Plessy’s Arrest in 1892 Led to a Landmark Ruling. Now He May Get Justice.. Segregation and Desegregation, Amnesties, Commutations and Pardons, Black People, Blacks, Discrimination, Plessy, Homer, Ferguson, John Howard, Louisiana, Civil Rights and Liberties, HARLAN, JOHN MARSHALL (1833-1911), Supreme Court (US)