https://goblinpunch.blogspot.com/2016/02/osr-style-challenges-rulings-not-rules.html [goblinpunch.blogspot.com]
http://www.hahnlibrary.net/rpgs/sources.html [www.hahnlibrary.net]
The D&D game is an amalgamation of many literary sources, from recent fantasy fiction to ancient mythology. Since understanding how these elements were intended to work, or how to best build on or alter them may sometimes require knowledge of their original context, a listing in one place of such influences could be a great help.
https://deltasdnd.blogspot.com/2023/01/advancement-in-classic-d.html [deltasdnd.blogspot.com]
We frequently marvel at how sketchy the advice was in Original D&D