A third of a century ago the schools of the South became the most integrated in the nation, a stunning reversal of a long history of educational apartheid written into the state laws and constitutions of the eleven states of the Confederacy and the six Border states, stretching from Oklahoma to Delaware, all of which had legally imposed de jure segregation until the Supreme Court prohibited it in 1954. From being almost completely segregated in their own schools, more than two-fifths of black students in the South were attending majority white schools and many more were in schools with significant diversity at the height of integration. Reversing the historic pattern, almost all of the Southern and Border states became more integrated than most Northern states with significant black enrollment. Since the 1980s, the tremendous progress in the South has been slowly eroding year by year as black students and the exploding population of Latino students become more isolated from white students. In some of the states which were most successful in achieving integration, the reversal has been much more rapid. Data from this report are computed from the Common Core of Data of the National Center for Education Statistics of the U.S. Department of Education for the years 1991 and 2003. Earlier data come from the data collected by the Office for Civil Rights. The following is appended: (1) Selected Unitary Status Rulings between 1990-2002. (Contains 7 tables and 2 figures.)