Dungeons & Dragons - history, versions, and revisions
Dragons & Treasures (Dungeons & Dragons) by Jim Zub, Official Dungeons & Dragons Licensed: 9781984858801 | PenguinRandomHouse.com: Books
Players Handbook (1e) - Wizards of the Coast | AD&D 1st Ed. | Rules | AD&D 1st Ed. | DriveThruRPG.com
Original D&D: Where It All Started (The 1975 White Box in photos) – Wayne's Books
WARRIORS OF MARS (1974): A Rare Lost Cousin of D&D – Wayne's Books
The Alexandrian » Character Creation in 5 Sentences: D&D 1974
D&D's original Players Handbook finally available as a PDF - Polygon
Timeline of D&D Editions (History) - LitRPG Reads
D&D Editions: Original Dungeons & Dragons (1974-1977) - LitRPG Reads
Dungeons & Dragons Manuals & Modules Platform - Platform Media - LaunchBox Community Forums
Playing at the World: 1974 Dungeon Variant, Now for Download
Original Dungeons and dragons - Book 3 - The underworld & Wilderness Adventures by Gary Gygax & Dave Arneson : Gary Gygax & Dave Arneson : Free Download, Borrow, and Streaming : Internet Archive