Stellar Frontier happened in 1997.
Stellar Frontier was created in 1997.
Stellar Theater happened in 2009.
SaGa Frontier happened in 1997.
Koča's frontier happened in 1788.
Rune Factory Frontier happened in 2008.
Australian frontier wars happened in 1788.
Macross Ace Frontier happened in 2008.
Frontier in Space happened on 1973-03-31.
Treasures of the Savage Frontier happened in 1992.
Monster Hunter Frontier happened in 2007.
Macross Triangle Frontier happened in 2011.
Gateway to the Savage Frontier happened in 1991.