Katherine Johnson, 1st black woman hired at NASA, a math prodigy, had to run 1/2 mile to the bathroom daily because the bathroom near her was for whites only. In Jonesboro Ark in 1970, the hospital had 2 thermometer containers, one marked 'colored', the other marked 'white'.
England in the first decade of 1800's banned buying and selling of slaves. In 1833, all slaves were freed.
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Footnote: Thank you to JBO for clarification.