Originally published by Games Research in 1959 and developed by Allan Calhamer. When first released by Avalon Hill, the pieces were wood, later changed to plastic. The game remained as a bookshelf / bookcase game until it was re-released in 1997 with a number of changes (rules and pieces), although the same basic gameplay remained.

There was also a "Deluxe Diplomacy" released which reverted back to the original wood pieces with self-adhesive flag labels, a newly painted mapboard, and more concise rules. And for those who can not get enough "Diplomacy", there was also a "Colonial Diplomacy" with new players, computer versions and a "Wargamer's Guide To Diplomacy" booklet which included hints and sample games.

Game components include (1976 version) : Gameboard, 112 playing pieces (8 ea. Army & Naval pieces in 7 different colors), 7 Conference Maps, Basic Rules sheet, 36-page "Gamer's Guide To Diplomacy" book & 12-page Rules booklet.

Game components include (1997 version) : Mapboard, 140 metal Playing pieces (70 Cannons & 70 Battleships), pad of Conference maps, Flag Ownership markers & 24-page Rules booklet.

Two to seven players (special rules for six players). Ages 12 & up. Avalon Hill from 1976 and later.

Additional info: There were articles on this game in "The General" magazine:
Vol. 12 # 5
Vol. 13 # 2
Vol. 16 # 6
Vol. 18 # 1, # 2 & # 3
Vol. 22 # 5 PBM
Vol. 24 # 3

An important note regarding Avalon Hill games - It was not unusual for Avalon Hill to re-publish most of their games with 2nd, 3rd or more Editions. Sometimes the game components changed, sometimes they didn't. If your game components do not correspond exactly with what is listed, do not despair. You may just have to do a little more checking to insure its completeness.
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