I think the best/most common example of this is the Jim Crow laws implemented shortly after the civil war: https://en.wikipedia.org/wiki/Jim_Crow_laws https://e

I think the best/most common example of this is the Jim Crow laws implemented shortly after the civil war: https://en.wikipedia.org/wiki/Jim_Crow_laws https://en.wikipedia.org/wiki/Jim_Crow_laws That Wikipedia article has a lot of detail in it that explains things well beyond what I could within an HN comment, but I think one example is "separate but equal" which was anything but equal.