I think I might have gotten it from jetpunk, directly or indirectly (as mentioned above, wikipedia rabbitholes, but not inspired by a pubquiz) because I think I came across this just recently. And I can;t think of how else I would end up on a site explaining this) Unless it was trivia from an npc on a game I recently started playing.. but that would be such a coincidence. (and some trivia is repeated on jetpunk)