Supplement I: Greyhawk
Published: 1975
Author: Gary Gygax
Sourcebook
Fantasy (High Fantasy)
Original D&D Supplements (1)
The first supplement to the original Dungeons and Dragons first edition. To quote the forward by Gary Gygax:
"There are new characters, new abilities, more spells to use, a horde of new monsters, heaps of new magical treasure, and various additions to the suggestions and rules for adventuring above and below ground."
This supplement introduces the Thief as a character class and Paladins as a sub-class of Fighting Men.