More ideas were able to be made like house electronics for example: the washer, a dishwasher, the lightbulb and many more, oh and also AC current which we still us to this day because it is safer and that is how the Tesla coil works
By the definition of Plessy v. Ferguson, the definition of "separate but equal" is generally understood as meaning that the facilities might be separate and different but they are basically the same.
This, obviously, was not the case.
