What civilizations were playable in civilization iv?

In Civilization IV:

America
Arabia
Aztec
Chinese
Egyptian
English
French
German
Greek
Incan
Indian (Asian)
Japanese
Malinese
Mongolian
Persian
Roman
Russian
Spanish


Civilization IV with Warlords expansion includes all civs from original Civ IV plus:

Carthaginians
Celts
Koreans
Ottomans
Vikings
Zulu


Civilization IV with Beyond the Sword expansion includes all civs from the original AND Warlords expansion, plus:

Babylonian
Byzantine
Dutch
Ethiopian
Holy Roman
Khmer
Mayan
Native American
Portugese
Sumerian