Letter	Sub heading
A	Ancient History generally
B	Ancient Near East generally
C	Egypt
D	Mesopotamia
E	Anatolia
F	Persia, Iran
G	India and the Far East
H	Syria, Phoenicia, Cyprus
J	Palestine
K	Arabia
L	North Africa other than Egypt
M	Greece and Rome
P	Greece and the Aegean with Macedonia
Q	Italy and the Etruscans
R	Rome
S	Byzantium
T	Barbarians and Nomads
W	Epigraphy
X	History of the Early Christian Church