LoC system beats Dewey every time. <a href="https://www.loc.gov/catdir/cpso/lcco/" rel="nofollow">https://www.loc.gov/catdir/cpso/lcco/</a>
Url changed from <a href="https://timeline.com/stories/melvil-dewey-was-brilliant-and-nuts" rel="nofollow">https://timeline.com/stories/melvil-dewey-was-brilliant-and-...</a>, which points to this.<p>HN prefers original sources: <a href="https://news.ycombinator.com/newsguidelines.html" rel="nofollow">https://news.ycombinator.com/newsguidelines.html</a>.