think about why you need to put energy into this?

do you really care about this or do you just want to win internet points?

there are so many topics in the world, why do you need to put energy into this one?

it's kinda like someone asking which programming language to learn because there are too many of them and all the introduction to programming tutorials are too obtuse and too hard, without a real reason for learning programming in the first place.

like the previous poster said, if you do care about it, the wikipedia article and the footnotes are a good place to start.