is inconsistent with the free and equal provision of the constitution, and the massachusetts court lemuel shaw said, no, separate but equal is consistent with this massachusetts's version of the equal protection clause and that seemed significant because massachusetts is the state that you think of as the cradle of -- but even massachusetts seem to think segregation was permissible under the state equal protection claus. >> let's talk about the legal amp cases. for example on twitter, doctor now tweets this question, did the plessy case effect other races? let me ask and both of you answer. how much was plessy cite as people cited jim crow laws? >> well, in the very beginning of the early 20th century there remained the number of cases in the south that involved jury service and voting in a view of they had cases, 1901, 1903, et cetera. those weren't successful for african-americans. there was a long dry spell with respect to using the 14th amendment for its original purpose, that is protecting african-americans. so, in 1917 there was a case that came out of the city of louisville involvi