The original Dungeons & Dragons set was written by Gary Gygax and Dave Arneson, and was published by TSR in 1974 as a digest-sized boxed set in a brown wood-grain box [REF].
This first set went through many printings[REF] and was supplemented with several official additions, including Greyhawk and Blackmoor in 1975, and Eldritch Wizardry, Gods, Demi-Gods & Heroes, and Swords & Spells in 1976.