Branko Grunbaum wrote in 1978 lecture notes called "Lectures on Lost Mathematics" Grunbaum talks about areas of geometry that went "underground". The topics discussed there and Grunbaum philosophical comments (e.g. p. 15 of the pdf file where the original manuscript begins) are quite relevant to the topic of the question. Some topics discussed by Grunbaum were "revived" in some cases because of these lecture notes and in other cases independently.
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