cannot discriminate and the iowa supreme court says if you allow segregated schools four blocks, then you will have to set up schools for catholics or for jews or for germans, or for french people, and basically the court marks the whole idea of discrimination for anybody. so in the north you have this wide range. i'll give you one kind of example. in 1875, congress passes an important law known as the civil rights act of 1875, which provides four public accommodations for all people, says you can't discriminate in hotels, in restaurants, on trains, on streetcars, in beaters, in places where people gather in the public. the supreme court strikes that down in 1883 and says it's unconstitutional. you cannot make the hotels in new york opened their doors to blacks. >> i'm going to slow it down because of class. >> i'm going to end it right now very quickly. in the next 25 years, virtually, every northern and western state passes their own civil rights act making such discrimination illegal. they don't always enforce it as we. no but they make it illegal. so on one level, yes, segregation is found in the north, but compared to the south it's a completely diffe