The kingdoms of Mistrya, Eridon, Drekis and Akuba are all ruled by humans. The kingdoms however have large segments devoted to the other races.
The common language in modern times is considered Eridonian, however many other nations do consider their own language to the the 'true' common language. Other major human languages are Mistryan, Drekissin, Mahtava, and Akuban. There is also Gadian which has been suppressed since Gade Isle's conquest by Eridon.
Surviving ancient Documents on the large tend to be written in the same ancient language called 'Ancient Common' however documents in the Caldonian Archives in Drekis are written in a different ancient language dubbed 'Caldonian'.
From 2e Player's Handbook
Movement 12, No Infravision
Class Limits: Can play all classes
Racial Ability Score Adjustments: None
Racial Ability Requirements: Str 3/18, Dex 3/18, Con 3/18, Int 3/18, Wis 3/18, Cha 3/18