What was the significance of the amendment XIV?

Answer 1

The 14th amendment to the U.S. Constitution has three clauses: the citizenship clause; the due process clause; and the equal protection clause. The citizenship clause essentially gave all blacks citizenship. The due process clause prevented state and local governments from denying persons (individual and corporate) of life, liberty and property without meeting certain requirements. The equal protection clause requires all states to provide equal protection to all individuals under its jurisdiction. The equal protection clause became the basis of the supreme court decision that dismantled racial segregation.