An enormous amount of the original D&D material was contributed by the player community, and the periodical "Dragon Magazine" was at the center of it. For example, the annarchive website link below (if it doesn't get filtered here) will take you to Dragon Magazine #1, which contained the Illusionist sub-class updated from its original publication in the Strategic Review newsletter:
https://annarchive.com/files/Drmg001.pdfBy changing the last three digits in the address (002, 003, etc.), you can access any issue of Dragon Magazine freely online. Dragon #067 explains the history of the Rod of Seven Parts and the Wind Dukes of Aaqa, for yet another example of fan contribution. D&D was never an individual's IP, it was always an open community project. That's why I like it. The original Baldur's Gate game also had a lot of community input.
But to keep up with modern times, I hereby declare that from this day forward, all suggestions I post are subject to copyright protection (c) Argyle per the date of the post. This includes all my great ideas for the Adventures in the City of Brass, notwithstanding the fact the the City of Brass itself was cited in the original AD&D Dungeon Master's Guide, but which in turn was derived from content of the original Greyhawk campaign, which was first hand-written on sheets of notebook paper somewhere in Kenosha, WI and which was in turn inspired by writings on scrolls, pyramid walls, and clay tablets from approximately the 1,000-2,000 BC era in the Tigris & Euphrates region.
