The courts interpretation of whether the Equal protection clause allowed racial segregation. Explanation: In the Plessy vs. Ferguson case (1896) the Supreme Court justices ruled that "separate but equal" facilities for blacks and white citizens were not a violation of the equal protection clause of the 14th amendment.
The Byzantine Empire is the eastern half of the Roman Empire, which survived for a thousand years after the western half had crumbled into various feudal kingdoms and which finally fell to Ottoman Turkish onslaughts in 1453.