Question: Which board game was released first, Stonehenge or Elfenland?

Context articles: The Quest of the Philosopher's Stone
Alhambra (board game)
Avalon Hill's Advanced Civilization
Castle Ravenloft Board Game
Risk 2210 A.D.
Francis Tresham (game designer)
Elfenland
Stonehenge (game)
BlazBlue: Chrono Phantasma
Plaid Hat Games

The Quest of the Philosopher's Stone is a 1986 Canadian board game published by Questone Marketing Inc.
 The game challenges players with three difficulty levels of puzzles and is set in a medieval fantasy world that includes sites such as Camelot, Atlantis and Stonehenge.
Alhambra (German: Der Palast von Alhambra , literally "The Palace of the Alhambra") is a 2003 tile-based German-style board game designed by Dirk Henn.
 It was originally published in Germany by Queen Games in a language-interdependent version; an English-specific version was released in North America by the now-defunct Überplay.
 The game is an Arabian-themed update, set during the construction of the Alhambra palace in 14th century Granada, of the 1998 stock trading board game "Stimmt So!"
, which in turn was an update of the 1992 mafia influence board game "Al Capone"; the original version was subsequently released as "".
Avalon Hill's Advanced Civilization is a computer edition of the "Advanced Civilization" board game (the "Civilization" board game including the expansion to that game called "Advanced Civilization").
 Both the board and computer game portray the same basic concept: the players manage ancient Mediterranean civilizations in an effort to move them from the early Bronze Age to beyond the Iron Age.
 It was published in 1995, shortly before Avalon Hill was bought out by Hasbro in 1998.
 It came out about the same time that Sid Meier's "Civilization II" was released, and as a result, didn't do well commercially.
 The game was also slightly hobbled in that it was developed for MS-DOS, so while it ran from Windows 95, it ran as a DOS application.
Castle Ravenloft Board Game is a 2010 board game published by Wizards of the Coast.
 It was the first game released in the Dungeons & Dragons Adventure System board game series.
Risk 2210 A.D. is a 2–5 player board game by Avalon Hill that is a futuristic variant of the classic board game "Risk".
 "Risk 2210 A.D." was designed by Rob Daviau and Craig Van Ness and first released in 2001.
 In 2002, it won the Origins Award for "Best Science Fiction or Fantasy Board Game of 2001".
Francis Tresham is a United Kingdom-based board game designer who has been producing board games since the early 1970s.
 Tresham founded and ran games company Hartland Trefoil (founded 1971), a company well known for its "Civilization" board game, until its sale to MicroProse in 1997.
 His "1829" game was the first of the "18xx" board game series and some of his board games have inspired Sid Meier computer games such as "Railroad Tycoon".
Elfenland is a German-style board game designed by Alan R. Moon and published by Amigo Spiele in German and Rio Grande Games in English in 1998.
Stonehenge is the first anthology board game.
 It was released in June 2007 by Paizo Publishing under their Titanic Games imprint.
 Five game designers, Richard Garfield, Richard Borg, James Ernest, Bruno Faidutti, and Mike Selinker, were given the same set of game materials and each created their own game using those components.
BlazBlue: Chrono Phantasma, released in Japan as BlazBlue: Chronophantasma (ブレイブルー クロノファンタズマ , BureiBurū Kuronofantazuma ) , is a 2-D fighting game developed by Arc System Works.
 It is the third game of the Blazblue series, set after the events of "".
 The game was originally to be released first as an arcade game in the early fourth quarter of 2012, which was later pushed forward to November 2012.
 A PlayStation 3 version of the game was released in Japan on October 24, 2013, while it was released in the United States on March 25, 2014.
 Due to limited hardware and disc space the game was not released on the Xbox 360.
 An updated version of the game titled BlazBlue: Chrono Phantasma Extend (ブレイブルー クロノファンタズマ エクステンド , BureiBurū: Kuronofantazuma Ekusutendo , BlazBlue: Chronophantasma Extend) , dubbed as BlazBlue: Chrono Phantasma 2.0 (ブレイブルー クロノファンタズマ ２.０ , BureiBurū: Kuronofantazuma 2.0 , BlazBlue: Chronophantasma 2.0) in the Arcade version, was originally released for Arcades in October 2014, and for the PlayStation 3, PlayStation Vita, PlayStation 4, and Xbox One in April 2015.
 It was released on June 30, 2015 in North America, with the European region version releasing on October 23, 2015.
Plaid Hat Games is a United States-based board game studio.
 Plaid Hat Games was founded in 2009.
 Board game designer Colby Dauch formed a board game publishing company in order to release the companies first game, Summoner Wars.