Hi all - this is kind of a mass mail-out I'm doing to various 4d-related sites. I came upon this site because I am writing a 17th century science fiction novel, and am looking for an account of the history of the 4th dimension. I think the idea of the fourth dimension predates Einstein (was surprised to see it being discussed in 'The Time Machine'), but by how far? Was Euclid ever inspired to look outside the box? Were there any thinkers who wrote of transdimensional matters before or during the 17th century? I like Eric Saltsman's invocation of Plato's cave, but I feel like that has less to do with geometry than Plato's notion of Forms -- which is very similar to transdimensional thinking, I guess; just not quite what I'm looking for. Also, on another discussion board, a kind user named Hugh recommended http://scholar.uwinnipeg.ca/courses/38/ ... nality.htm - but that didn't go in-depth enough.
Thanks - any help would be greatly appreciated.