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Along with replies by ’ClumsyPilot and ’ruined, remember that Brown v. Board of Education was passed only in 1954 and 1954 is just yesterday.

Also see this HN comment from a day ago on how much a black person had to fear even in 1980:

https://news.ycombinator.com/item?id=30061511

An excelelnt book regarding these is 'Simple Justice by Richard Kluger

https://www.amazon.com/Simple-Justice-Education-Americas-Str...

Another book focusing on computing is 'Stuck in the Shallow End: Education, Race, and Computing by Jane Margolis

https://www.amazon.com/Stuck-Shallow-End-Education-Computing...

There is a wealth of info regarding these things, see redlining for example:

https://en.wikipedia.org/wiki/Redlining

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