In Middle age Times, the Thesaurus was an open courtyard at the entrance that usually had covered aisles on the sides. They were often found in churches and palaces. In modern buildings they are entry rooms with a translucent roof that allows a connection between the outdoor sky and the indoor space.
Jim Crow laws were any of the laws that enforced racial segregation in the American South between the end of Reconstruction in 1877 and the beginning of the civil rights movement in the 1950s.