The question was about the segregation of the toilet facilities abord trains. The judgement forced the rail companies to offer the same treatment and facilities in "colored" train cars as in the "white" train cars of the same class, following the "separate but equal" principle.
That means that each car of a given class should have the same features and amenities, no matter if it was a car designated for white passengers or for "non-white"/"colored" passengers.
Nixon needed China in negotiations with Vietnam. -China is the most populated nation in world and wanted to have commercial relations -Play USSR and China off one another -Nixon would not be accused of being "soft on communism"
I might be wrong but diversity and safety are two things i can think of. If what we're seeing is a fire exit then it displays the safety issues found in early workplaces. and there is also a lack of diversity between the workers on the stairs.
The sinking of the Lusitania in 1915 had a very negative effect on the American public opinion of Germany, since it was the Germans who sank the American ship for seemingly no reason.