How has the representation of ethnic characters in Marvel changed?

I would like the essay to go in chronological order which speaks about representation of ethnic characters from when Marvel was created up to today, i would also like a list of references that have been used

An example of the structure i would like is: https://marvel.fandom.com/wiki/Race,_Orientation,_and_Gender_in_Marvel_Comics

where they speak about how events in history / racism has affected how characters were designed

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