So March 4th, the day Gary Gygax passed away has become known as GM's Day. Since I am a fan of both D&D creators, I started thinking about the time back in 1972 when Dave Arneson first sat down and Game Mastered a game of Blackmoor for David Megarry, Rob Kuntz, Terry Kuntz and Gary Gygax.
Later, Gary would say the following about what Dave was like as a Dungeon Master:
"I can not recommend him more highly than simply saying that I would rather play in his campaign than any other"
-D&D Supplement II Blackmoor
So to all the D&D fans out there. Happy GM's day! :)