Just for fun: a poster of sentence diagrams of the first sentences of famous novels made the rounds on the Internet last week, and the Paris Review decided to take a look at the history of sentence diagrams:
As a pedagogical device, sentence diagrams have fallen out of fashion; I never had to draw them (if that’s even the right verb) in school, nor was I made to study any grammar beyond the rudimentary parts of speech. This makes me feel like a fraud whenever I pretend to be a grammarian, as I often do. In fact, before today, I’d never heard of the Reed-Kellogg System; it sounds to me like a proprietary method for processing and packaging cornflakes.
Actually, it dates back to 1877, when it was invented by two men with great names, Alonzo Reed and Brainerd Kellogg.