Premise: Dungeons & Dragons ( abbreviated as D&D or DnD ) is a fantasy tabletop role-playing game ( RPG ) originally designed by Gary Gygax and Dave Arneson , and first published in 1974 by Tactical Studies Rules , Inc. ( TSR ) . The game has been published by Wizards of the Coast ( now a subsidiary of Hasbro ) since 1997 .
Hypothesis: In 1974, Dungeons & Dragons was first published.
Label: ENTAILMENT