Columbia subject headings:
Dionysius I, approximately 430 B.C.-367 B.C.
Sicily (Italy)--History--To 800.
Harvard subject headings:
Dionysius I, approximately 430 B.C.-367 B.C.
Sicily (Italy)--History--To 800
Princeton subject headings:
Dionysius I, approximately 430 B.C.-367 B.C.
Syracuse (Italy)--Politics and government.