daaaammm
I missed Byzantines :||
I usually remeber this with the next rule:
4 civs on each design set:
Western European:
Spanish, Franks, Britons, Celts
Easter European:
Teutons, Vikings, Huns, Goths
Middle East:
Persia, Sarracens, Turks, Byzantines
Asia:
Korea, Mongols, Chinese, Japanese
+2 Mesocivs:
Aztecs, Maya.
Then you add the expansions:
AoFE (5 civs):
Indians, Incas, Italians, Magyars, Slavs
AoAK (4 civs):
Portuguese, Malians, Berebers, Ethiopians
AoRR (4 civs):
Malay, Khmer, Burmese, Vietnamese
And I do it all in one run this time :| 111